Campaign Overview

Voyage to the Starfallen Isles

In an age when the sky itself has become a vast ocean of floating isles—shards of cosmic wreckage scattered like stars fallen to earth—brave captains and daring crews stake their lives on the shifting tides of the Shattered Sea. You are among those daring few called to chart unmapped currents, salvage alien relics, and unravel the enigma of a legendary comet said to grant a single, universe-changing wish. From the Port of Radiant Star, where smugglers traffic in star-metal and clandestine cults whisper of cosmic horrors beyond comprehension, to the mold-encrusted caves of the Floating Isle of Ashen Leech, where blood-thirsty vines drain arcane energies and ancient pirate fortresses lie in ruin, every new horizon holds danger and wonder.

Guided by prophetic half-elf Captain Mira Solara, scholars like Old Magister Rheon, and the cryptic Avatar known as the Star-Eidolon, you will sail amidst asteroid storms, negotiate tense pacts with sky-pirates and merfolk druids, and confront cosmic aberrations that defy mortal logic. You will uncover relics from crashed starships—astrolabes that chart celestial alignments, comet shards that pulse with life, and living crystal intelligences that speak in alien tongues. Along the way, mighty factions vie for control of these powers: the marauding Starbound Corsairs, the occultist Voidseekers, and the stalwart Celestial Wardens. Each offers uncertain alliances or unequivocal hostility, testing your diplomatic and martial resolve.

As your airship slices through phosphorescent mists toward the coral-spined Celestial Reef, the final crucible awaits: the Wishfall Crater, rimmed with obsidian archways and guarded by spectral comet avatars. Here, you must align alien glyphs, repel cultist uprisings, and prove yourselves worthy in a trial that transcends mere combat. Succeed, and the comet’s radiant light answers your deepest longing—whether salvation for a crushed kingdom, vengeance against a cosmic foe, or the power to reshape reality itself.

Prepare to master wind-sails attuned to astral currents, command your crew through skyship skirmishes, solve ancient puzzles of alien origin, and face horrors from beyond the veil of space. The stars may have fallen, but from their ruins, legends are forged. Will your names be written among the constellations? Your voyage begins now.

Starting Location

Port of Radiant Star

Port of Radiant Star is a sprawling nautical hub carved into limestone cliffs along the Shattered Sea’s edge. Imagine creaking wooden docks that float on phosphorescent waters, festooned with colorful pennants fluttering in ever-shifting winds. Crystal lanterns hang from soaring masts, casting prismatic glows on exotic vessels belonging to sea captains, smugglers, and star-scholars alike. Cobblestone streets wind between bustling taverns, star-forging workshops, and markets hawking alien artifacts recovered from skyward wrecks. Scholars lean over brass telescopes atop balconies, charting drift currents of glowing astral debris. Rumors swirl of starfallen isles—floating chunks of cosmic rock that once housed ancient alien ruins. This port is the perfect launching point for any airship captain seeking fame, treasure, or a shot at witnessing the legendary wish-granting comet that streaks across the night sky every decade. However, beneath the veneer of commerce and wonder lurk hidden guild rivalries and cosmic cults that vie for control of rare star-metal and knowledge.

Secrets

  • A guard captain is secretly a Voidseer cultist plotting to sabotage your ship.
  • An underground tunnel leads to the vault from the shipyard and can be discovered with a successful Investigation.
  • A board in the tavern’s back room lists secret bounties keyed to coordinates of starfallen isles.

Key Locations

The Celestial Dockyard

A grand shipyard built on floating timber platforms reinforced with fragments of starstone. Each berth glows faintly, energized by residual cosmic magic. Shipwrights and artificers labor around basalt pillars to fit hulls with wind sails enchanted to harness astral currents. Cranes shaped like cosmic leviathans hoist hull sections bathed in azure starlight. The air smells of salt, iron, and ozone. At night, bioluminescent plankton swirl beneath the decks, giving an otherworldly glow. Captains gather here to gossip, bargain for passage, or recruit crew for daring voyages. Farther in, hidden beneath false flooring, lie vaults of illicit cargo and contraband starlight fragments.

Additional Notes

DM may introduce a hidden ledger listing pirate contracts. A secret back tunnel connects to the undercity of smugglers; discovery triggers a chase encounter.

The Starfall Tavern

A rickety two-story establishment patched together from salvaged hulls of skyships that crashed into the bay. Inside, tables are carved from driftwood with star-metal inlays. Neon globs of bioluminescent fungi line the rafters. Sailors and sky-pirates swap tall tales over mugs of cosmic rum brewed with starwater. A trio of sisters known as the Moonsong Bards perform haunting tunes that echo like distant comets. Rumors swirl about a hidden cellar where Captain Ironhook conducts clandestine auctions of alien relics. Secret messages are passed in frothy mugs via encoded patterns in foam. Occasional brawls break out under strobe flashes of glass chandeliers.

Additional Notes

Underneath a trapdoor lies a black-market auction house. The barkeep knows more about the comet’s cycle than she admits.

The Astral Lighthouse

A towering spire of white marble and starstone perched on a jagged promontory. Its beacon is a swirling orb of pure cosmic energy that guides airships safely through stormy starfalls. Inside, a narrow spiral staircase leads past murals that depict celestial phenomena, sky-beasts, and the mythical comet’s passage. At the top, an observatory chamber houses an oversized telescope of brass and crystal lenses. Keepers record patterns of drifting meteor shards to predict floating isle movements. Whispered legends say one of the murals hides a map to the Starfall Crater.

Additional Notes

One mural panel can slide open, revealing a secret chamber with an alien codex written in glowing symbols.

The Hidden Star Vault

Concealed beneath the city’s central plaza behind an illusionary fountain lies this reinforced vault hewn from pure star-metal. The vault door is etched with constellations that must be aligned to open. Inside are shelves crammed with cosmic artifacts: fossilized comet shards, alien computing spheres, star-forged blades, and capsules of trapped nebula gas. Magical wards hum with energy to repel intruders. Archival scrolls detail ancient starfall events and mention a legendary wish-granting comet. Rumor has it the vault’s original architect left behind a coded blueprint to a larger alien starship buried on the isles.

Additional Notes

Unlocking requires a three-part constellation key hidden across town. DM can scatter clues among NPCs.

The Captains' Quarter

A gated enclave of elegant villas built on raised platforms over the water. Each villa boasts its own airship mooring point and personalized windsails etched with family crests. Officers of the Royal Skyfleet, wealthy merchants, and terraforming magnates live here. Marble statues of historical explorers gaze outward toward the horizon. Servants in crisp uniforms deliver messages and star-charts. The Quarter is patrolled by sky-marshals to thwart espionage. Rumor holds that one villa hosts a clandestine star-court where powerful captains broker alliances, betray rivals, and exchange alien relics.

Additional Notes

A hidden meeting chamber beneath one villa can host clandestine roleplay; perfect for secret negotiations or ambush encounters.

The Shattered Sea

The Shattered Sea is a restless expanse of fractured islands drifting across sky-tinted waters. Chunks of starrock, ranging from mossy atolls to jagged monoliths, float amid drifting mist and celestial currents. Airships traverse floating corridors, guided by coves of swirling phosphor foam. Ancient ruins peek out from under spongy vines of glowing lichen. Beneath the surface, crater-like sinks open to underwater grottos where skyfish shimmer and meteor-eels lurk. Pirate skiffs dart between islands, while ghost ships appear in storm-wracked nights. Pressure from cosmic tides occasionally spawns elemental whirlpools that snap rigging like twigs. The Sea holds alien secrets buried in star-cratered isles and the wrecks of crashed sky-ark vessels.

Secrets

  • An underwater hatch at the Sunken Spire leads to a living star-statue. Rumors of an elemental nexus beneath the Radiant Atoll. A pirate warband uses the Ashen Leech Isle to harvest starblood for voodoo rituals.

Key Locations

Floating Isle of Ashen Leech

A dark basalt plateau covered with thick black moss and pulsing crimson leech-vines that cling to anything living. Pools of stagnant water reflect the blood-red sky. Ruins of an alien anchorage bear strange glyphs warning of a vengeful star-entity. The leech-vines feed on magical energy; spellcasters risk extraction if vines latch on. Beneath the mossy surface, tunnels lead to an obsidian sarcophagus rumored to house a slumbering starspawn.

Additional Notes

Magical detection spells malfunction around leech fields. DM can impose spellcasting concentration checks when near vines.

Sunken Spire

Half-submerged among shallow seas, this sleek, spire-like tower of starstone rises from a circular reef. Corridors etched with constellations wind around its core. Submersible airlocks allow divers to explore flooded galleries of alien machinery. A central chamber houses an inert celestial engine that once powered an ancient vessel. You can restart parts of it to create temporary wind currents or trigger defense drones still dormant. Echoes of a distress transmission loop every dawn.

Additional Notes

If activated fully, the engine yields a one-hour astral wind corridor beneficial for fast travel.

The Radiant Atoll

A ring of sunlit islets covered with golden grass that glows softly under starlight. In the center lies a calm lagoon filled with starwater lilies. At dusk, the lilies’ petals open to reveal crystalline seeds said to be fragments of the wish-comet. Druids of an alien order once guarded the atoll, leaving behind stone circles that harness solar and celestial magic. Across the sands, you find diaries of a lost expedition that glimpsed the comet’s cosmic true form.

Additional Notes

Harvesting lilies requires a DC 15 Nature check. Success yields seeds; failure triggers sand wasp swarm.

The Celestial Reef

The Celestial Reef floats at the boundary between sea and sky, an archipelago of radiant corals, crystalline atolls, and shimmering lagoons reflecting the cosmic void. Star-metal arches form natural bridges connecting isles encrusted with luminescent algae. Beneath tranquil waters, schools of prism-finned skyfish swim amidst glowing coral forests. Towering spires of pure crystal pulse with cosmic energy harvested from ancient impact sites. This region houses the legendary Wishfall Crater—where the wish-granting comet impacted centuries ago—now a sacred site teeming with cosmic horrors and alien guardians. Storms of meteoric debris strike at dawn; only those attuned to the universe’s song can navigate safely. Many airship captains seek the Crater’s power to fulfill desires, but few return unscathed by its whispers.

Secrets

  • Beneath the Heart’s well lies a sealed vault holding the comet’s living core fragment. A hidden eclipsed glyph chamber links to the Void between stars. Star-Eidolon was once a comet’s conscious essence longing to be freed.

Key Locations

Obsidian Observatory

Perched on a high reef spire, this darkened observatory of polished obsidian overlooks the Wishfall Crater. Telescopes of alien design track astral currents and map meteor storms. Inside, a circular star-map embedded in the floor can rotate to chart comet trajectories. A semi-sentient crystal AI called the Star-Eidolon offers cryptic guidance to those who answer its riddles. Outside, terraces hold containment cages for captured sky-serpents used to power observatory enchantments.

Additional Notes

Star-Eidolon can grant a boon if correctly answered three riddles; failures summon protective constructs.

Heart of the Reef

A central gathering isle covered with twisted star-corals that pulse to cosmic rhythms. Stone altars carved with alien runes stand in a spiral pattern around a natural well of starwater. At high tide, bioluminescent currents converge here to form a living constellation reflecting the comet’s path. Pilgrims carve sigils into coral for blessings. Guardians crafted from living star-coral patrol silently, attacking intruders with resonant sonic blasts.

Additional Notes

Coral guardians regenerate every dawn; DC 15 Nature or Religion to pacify them temporarily.

Cometfall Crater

The immense impact basin where the comet’s core buried itself millennia ago. The crater glows with pale blue luminescence from the embedded star-metal core. Alien glyphs etched into the rim form a ritual chamber to invoke the comet’s wish. Ghostly echoes of past rites drift in the air. Twisted rock spines point inward like the teeth of a maw. Within the core’s fractured remains lurk cosmic beings bound by ancient covenant, awaiting a worthy supplicant.

Additional Notes

Ritual requires aligning glyphs precisely at midnight; failure risks attracting a cosmic horror.

NPCs in Port of Radiant Star

Captain Mira Solara

A charismatic half-elf star-captain with gleaming silver eye-patch and celestial tattoos. She’s driven by a prophecy about the wish-comet and quick to recruit daring crews.

Role: Main Quest Giver Other Details: Offers an airship berth if convinced of your worth.

Old Magister Rheon

A wizened human scholar of arcane astronomy. His library is filled with scrolls on alien artifacts and cosmic events.

Role: Quest Advisor Other Details: Knows cryptic details about comet cycles.

Velvet Ironhook

A notorious dwarf pirate-queen with a prosthetic star-metal hook. She commands a fleet of brigands in the Shattered Sea.

Role: Antagonist Other Details: Offers a chance to parley or duel on her flagship.

Elysia Noyo

A gnome artificer who crafts starlight-fueled gadgets and airship upgrades. She’s excitable and curious.

Role: Merchant/Side Quest Giver Other Details: Can embed star-metal into your hull for better maneuverability.

Barnabas Tallow

A corpulent halfling informant fond of gossip and rum. He trades secrets for rare delicacies.

Role: Information Broker Other Details: Holds key intel on cult movements.

NPCs in The Shattered Sea

Scourgeheart Remy

A formidable human pirate-king with cobalt dreadlocks and a star-metal hook sword. He rules the Ashen Leech base.

Role: Optional Ally or Foe Other Details: Offers a dark pact for starblood powers.

Tessara of the Tides

A merfolk druid who patrols underwater grottos on a coral chariot. She safeguards starwater lilies.

Role: Side Quest Giver Other Details: Teaches water-breathing ritual if aided.

Archivist K’el’thirr

An alien scholar preserved in stasis at the Sunken Spire, awakened by divers.

Role: Lore Source Other Details: Knows ancient rituals to summon or banish starspawn.

NPCs in The Celestial Reef

Priestess Lumina Vale

A human priestess clad in ceremonial robes of shifting starlight. She safeguards the rituals at the Crater and tests pilgrims’ resolve.

Role: Ritual Guardian Other Details: May become ally if players prove their purity.

Star-Eidolon

A semi-sentient crystal AI formed from comet essence. Speaks in echoing whispers and offers riddles.

Role: Lore Keeper and Gatekeeper Other Details: Answers can yield crucial guidance or lash out.

Commodore Astra Ven

A tiefling sky-admiral leading the Celestial Wardens. She patrols the reef in a massive flagellant frigate.

Role: Ally or Rival Other Details: Wields an astral trident that controls minor meteor showers.

Factions

Starbound Corsairs

A loose confederation of sky-pirates and privateers who prey on trading vessels in the Shattered Sea. They revere freedom, plunder alien artifacts, and follow legendary pirate-queens like Velvet Ironhook. Though often in conflict with naval authorities, many Corsairs see themselves as explorers of the unknown sky realms rather than criminals, believing the floating isles’ secrets belong to all who dare to claim them.

Goals

  • Acquire star-metal and cosmic relics.
  • Maintain control of key sky routes.
  • Challenge Royal Skyfleet authority.

Relationships

With Other Factions
Hostile to Royal Skyfleet, uneasy truce with Voidseekers for artifact trade, rivalrous with Celestial Wardens.
With Players
May assist or attack players based on reputation; can be bargained with for shared loot or intel.

Voidseekers

A clandestine cult devoted to understanding and communing with cosmic horrors beyond mortal ken. They haunt starfallen ruins, capture alien entities, and perform forbidden rituals under eclipsed skies. Though morally ambiguous, they possess critical knowledge of the comet’s powers and alien technology. Many Voidseekers operate in shadows, infiltrating ports and towers, exchanging dark pacts for scraps of star-metal.

Goals

  • Uncover alien star-lore and forbidden rituals.
  • Capture or control cosmic entities.
  • Summon or communicate with the wish-granting comet.

Relationships

With Other Factions
Feared by Corsairs for occult nature; hunted by Celestial Wardens; tolerated by some pirates for barter.
With Players
Offer secrets and power in exchange for risky tasks; trust is tenuous and may lead to unexpected betrayals.

Celestial Wardens

An elite sky-knighthood sworn to protect the cosmic balance and guard sacred sites like the Wishfall Crater. They patrol the Celestial Reef in warships, enforce maritime law, and oppose any abuse of starfall magic. Led by tiefling Commodore Astra Ven, Wardens employ both martial prowess and arcane wards to keep cosmic horrors at bay. They respect honorable aviators but show no mercy toward smugglers or cultists.

Goals

  • Safeguard the Wishfall Crater.
  • Prevent cosmic corruption of inhabited realms.
  • Maintain order in float lanes.

Relationships

With Other Factions
Hostile to Corsairs and Voidseekers, allied with select sky-nations, cautious with independent captains.
With Players
Will help if players prove honorable; may attack if players ally too closely with pirates or cultists.

Main Questline

A Star Port in Peril

Given by: Captain Mira Solara

Strange meteor showers intensify around the Port of Radiant Star, damaging ships and inciting panic. Captain Solara recruits the party to investigate, fend off pirate raids, and secure an alien artifact rumored to stabilize astral currents. This introductory mission sets the stage for cosmic mysteries and nautical skirmishes.

Goals

  1. Defend the port from raiders.
  2. Retrieve the artifact from a downed sky-sloop.
  3. Report findings to Solara.

Reward

• 500 gp • Ship repairs and temporary buff (–2 to attack rolls against airship) • Map fragments to first starfallen isle

Secrets

  • Artifact contains encrypted coordinates to the Shattered Sea’s heart.
  • A port official is sabotaging your expedition.

DM Notes

Use a shipboard combat encounter; emphasize urgency and introduce airship mechanics.

Charting the Shattered Sea

Given by: Old Magister Rheon

Using the recovered artifact, Rheon helps chart a safe passage through the Shattered Sea’s shifting isles. The party must navigate astral currents, avoid elemental whirlpools, and negotiate with pirate lords for safe conduct. On arrival, they discover an alien outpost housing a cosmic engine still humming with power.

Goals

  1. Plot a course through hazards.
  2. Broker or battle safe passage.
  3. Reach the alien outpost.

Reward

• 750 gp • +2 bonus on Navigation checks • Temporary speed enchantment for your ship

Secrets

  • Pirates plan to overcharge the engine to unleash a cosmic storm. The engine’s core pulse matches the wish-comet’s frequency.

DM Notes

Integrate skill challenges for navigation and diplomacy; introduce mid-air hazards.

Artifact of the Fallen

Given by: Archivist K’el’thirr

Awakened at the Sunken Spire, K’el’thirr asks the party to retrieve an ancient alien artifact from the Isle of Ashen Leech. They must bypass leech-vines resistant to magic, contend with cultists harvesting starblood, and secure the device—a crystalline astrolabe that points to the comet’s core.

Goals

  1. Infiltrate the Isle of Ashen Leech.
  2. Bypass or remove leech-vines.
  3. Recover the alien astrolabe.

Reward

• Astrolabe of Celestial Alignment • 1000 gp • Knowledge of the comet’s true path

Secrets

  • The astrolabe stores a hidden star-chart of a forgotten alien vessel. Cultists intend to use it to control weather on the final reef.

DM Notes

Use environmental hazards; consider a negotiation with cultists.

Pirate Lord of the Abyss

Given by: Captain Mira Solara

With astrolabe in hand, pirates under Velvet Ironhook strike at the party’s ship. Solara directs you to her private arena on the Captains’ Quarter for a duel against Velvet’s champions. Victory grants access to secret sky-lanes leading to the Celestial Reef. Failure could strand your crew in the abyssal currents.

Goals

  1. Survive the arena challenges.
  2. Defeat Velvet’s champions.
  3. Secure sky-lane maps.

Reward

• Parley with pirate allies • 1200 gp • Secret sky-lane coordinates

Secrets

  • Velvet hides a weakness in her ship’s hull plating. One champion is under mind control; freeing them gains an ally.

DM Notes

Stage dramatic duels; encourage creative tactics to turn the tide.

Wish upon the Starfallen Comet

Given by: Priestess Lumina Vale

Finally at the Celestial Reef’s Wishfall Crater, the party uses the astrolabe to align glyphs and summon the comet’s core. They must guard against cosmic horrors unleashed by the ritual, survive an ambush by cultists seeking to twist the wish, and negotiate with the Star-Eidolon for safe invocation. Once the comet’s light descends, they can make their one true wish.

Goals

  1. Align glyphs with astrolabe.
  2. Repel cultist assault.
  3. Invoke the comet’s core and cast the wish.

Reward

• One Wish (campaign-altering) • Comet Core Shard • Legendary renown and potential cosmic boon

Secrets

  • The cult leader is a high-ranking Royal Skyfleet officer. The comet’s essence may corrupt careless wishmakers.

DM Notes

This climactic quest should feel cosmic and tense; allow players to shape the final narrative.

Side Quests in Port of Radiant Star

Bottled Starlight

Given by: Elysia Noyo

Elysia sends the party to capture a wisp of pure starlight trapped in an astral current swirling off the docks. To do so, they must navigate floating debris, calm a restless sea elemental attracted by the light, and gin up a containment spell. Along the way they discover the elemental’s sorrow stems from cosmic debris hunting its astral home. Resolving its pain yields more potent starlight.

Goals

  1. Locate the swirling astral current.
  2. Subdue or befriend the sea elemental.
  3. Safely bottle the starlight.

Reward

• 300 gp • Starlight Grenade (charges: 3) • +1 infusion from Elysia

Secrets

  • The elemental is bound to a missing runeword that hints at an alien ritual.
  • Containers can fail if shaken too violently; DC 15 Con save.

DM Notes

Encourage roleplay with elemental to earn its gratitude and improved rewards.

Ghosts of the Shallows

Given by: Barnabas Tallow

Ghostly wails echo from a sunken frigate swamped beneath the shallows. Barnabas wants the crew’s lost heirloom: a gold sextant rumored to chart drifting sky-reefs. Players must dive into phosphorescent waters, evade spectral sailors bound to the wreck, and decipher a tide glyph to open a sealed cabin. The spirits can be laid to rest if the sextant is returned to a proper memorial.

Goals

  1. Dive and find the sunken wreck.
  2. Retrieve the gold sextant.
  3. Perform a ceremony to calm the ghosts.

Reward

• 200 gp • Nautical Sextant of Tidal Alignment • Reputation boost in port

Secrets

  • The sextant also tracks minor cosmic shifts helpful later.
  • One ghosted sailor seeks vengeance on a living pirate still docked in port.

DM Notes

Use underwater combat rules; add a time limit before the ship collapses.

Smuggler's Rendezvous

Given by: Velvet Ironhook

Velvet offers a contract: intercept a smuggler’s skiff carrying illicit alien cores bound for a rival gang. Players must track the vessel by decoding a star-map, outrun naval patrols, and wrestle or parley for the cargo. Success grants favor with pirates but risks pursuit by the Royal Skyfleet’s enforcers.

Goals

  1. Decode the smuggler’s star-map.
  2. Intercept the skiff.
  3. Secure the alien cores for Velvet.

Reward

• 500 gp • Black-market alien core (mystery effect) • Pirate passage discount

Secrets

  • The core pulses with life; it may hatch into a starspawn. Velvet plans to double-cross the party unless they find evidence of betrayal.

DM Notes

Scale naval chase with skill challenges and dynamic obstacles.

Lost Navigator

Given by: Old Magister Rheon

Rheon’s protege vanished while mapping floating isles. Players find her notes in an abandoned workshop: she discovered a hidden warp gate. To rescue her, they must journey to a nearby sky-reef, bypass arcane traps powered by nebula crystals, and negotiate with a territorial sky wyrmling guarding the gate’s key. The navigator holds vital data on the comet’s trajectory.

Goals

  1. Track and access the warp gate.
  2. Disable traps.
  3. Secure the navigator and her logs.

Reward

• 250 gp • Navigator’s Data Logs • +2 bonus on Astral Navigation checks

Secrets

  • The protege uncovered hints of an ancient alien vessel buried on the isles.
  • The wyrmling is dying; curing it yields its loyalty.

DM Notes

Offer an ethical choice: kill or heal the wyrmling.

Under the Silver Moon

Given by: Captain Mira Solara

Strange moonlight illuminates the waterfront, and livestock vanish overnight. Mira suspects lunar lycanthrope activity and asks players to stake out the docks until midnight. They must identify the afflicted, survive werewolf ambushes on rooftops, and discover a lunar talisman powering the transformation. Destroy or claim it before more innocents suffer.

Goals

  1. Stake out docks at midnight.
  2. Defeat or capture the werewolves.
  3. Recover the lunar talisman.

Reward

• 300 gp • Moonlit Blade (silvered +1 shortsword) • Temporary advantage on night watches

Secrets

  • The talisman was stolen from an ancient alien ruin.
  • One dockhand is an undercover cultist protecting the item.

DM Notes

Use rooftop terrain; include tension with innocents caught between sides.

Side Quests in The Shattered Sea

Leechborne Experiment

Given by: Archivist K’el’thirr

K’el’thirr believes the Ashen Leech Isle’s vines hold curative properties if properly distilled. Players must harvest sap from the leeches, avoid ritual guardians, and mix it with starwater. The concoction can heal cosmic corruption but risks mutating the brewer if improperly processed. Ancient runes hint at controlling the leech hive-mind temporarily.

Goals

  1. Harvest leech sap.
  2. Retrieve starwater.
  3. Brew the potion.

Reward

• Potion of Cosmic Purity • 400 gp • Insight into starspawn weaknesses

Secrets

  • The vines respond to music; singing can calm or enrage them.
  • The distillation requires adding rare meteor-silt from a crash site.

DM Notes

Include skill checks for Medicine and Arcana; risk critical failures.

Grove of Fallen Stars

Given by: Tessara of the Tides

Tessara needs help clearing a reef-choked passage to her sacred grove so the starwater lilies can bloom fully. Players dive beneath heavy currents, avoid carnivorous coral, and disable broken defense golems powered by alien cores. Once cleared, Tessara invites them to a druidic ritual under moonlight granting enhanced water-breathing for one hour.

Goals

  1. Clear the reef.
  2. Defeat malfunctioning golems.
  3. Aid the ritual.

Reward

• Water-Breathing Blessing (1 hour) • 300 gp • Coral Chariot blueprint

Secrets

  • A hidden alcove contains shards of the comet’s tail. One golem holds an embedded memory crystal revealing pirate plans.

DM Notes

Underwater navigation challenges with limited oxygen.

Echoes of the Spire

Given by: Scourgeheart Remy

Remy demands the party salvage one functioning defense drone from the Sunken Spire. It requires diving into flooded levels, solving pressure valve puzzles, and fighting a water elemental awakened by the central engine. He’ll use the drone to protect his smugglers and invites the party to join his pirate council if successful.

Goals

  1. Enter the Sunken Spire.
  2. Salvage the defense drone.
  3. Return to Remy.

Reward

• Drone of Tideguard (construct ally) • 350 gp • Pirate Council invitation

Secrets

  • The drone’s core holds coordinates to an uncharted isle. Remy plans to betray the party once he’s armed.

DM Notes

Allow players to reprogram or steal the drone for themselves.

Side Quests in The Celestial Reef

Song of the Star-Eidolon

Given by: Star-Eidolon

The crystal AI requests the players retrieve three lost sound-crystals scattered across the Heart of the Reef to restore its full memory. They must navigate coral labyrinths, survive sonar blasts from guardians, and solve musical patterns to place crystals in harmony slots. Each recovered crystal unlocks more of ancient cosmic knowledge.

Goals

  1. Find and return 3 sound-crystals.
  2. Solve the musical lock sequence.
  3. Witness Eidolon’s restored memory vision.

Reward

• Eidolon’s Memory Shard (lore & magical insight) • 300 gp • Advantage on Performance checks

Secrets

  • One crystal contains a fragment of an alien language that deciphers comet glyphs. A hidden melody can pacify cosmic horrors.

DM Notes

Use auditory illusions and performance skill challenges.

The Serpent’s Cage

Given by: Commodore Astra Ven

A rogue sky-serpent broke containment and terrorizes shipping lanes near the crater. Astra asks players to track it through coral canyons, avoid its lightning breath, and subdue it using a harpoon array. Success secures safe passage for all vessels and gains the Warden’s trust.

Goals

  1. Locate the escaped serpent.
  2. Subdue or kill the beast.
  3. Return to Astra Ven.

Reward

• Warden’s Emblem • 400 gp • Access to sky-fleet support

Secrets

  • The serpent carries an alien parasite that may spawn a brood. A hidden nest lies in the deepest cavern under the crater.

DM Notes

Encourage creative uses of harpoons and agility challenges.

Vault of the Living Core

Given by: Priestess Lumina Vale

Lumina believes the comet’s living core fragment below the Heart’s well can grant boons but must be tested. She tasks the party to open a sealed vault by finding three keystones hidden in coral guardians’ lairs, solve an astral alignment puzzle, and face a spectral comet avatar trial. If they succeed, the core may grant a one-time wish.

Goals

  1. Acquire 3 coral keystones.
  2. Align the celestial puzzle.
  3. Defeat the comet avatar and claim the shard.

Reward

• One Wish (DM-guided) • Comet Core Shard (powerful artifact) • 500 gp

Secrets

  • The avatar may twist the wish; precise wording is critical. One keystone is guarded by a redeemed pirate spirit.

DM Notes

This quest leads into the final main quest if completed.

Encounters

Starlit Dervish Ambush

Medium

Suggested Level: 4-6

A pack of spectral sky-dogs charges through astral mist to rend the party on a narrow walkway.

Creatures

  • 4 Spectral Sky-Dogs

Terrain Features

  • Narrow, glowing walkway over an abyss
  • Patches of swirling mist obscure vision
  • Rails you can jump to avoid falls

Treasure

50 gp in cosmic dust, 1d4 star-dog pelts

DM Notes

Encourage use of AoE to split the pack; enforce fall risks and use of Acrobatics to avoid slipping.

Pirate Ship Volley

Hard

Suggested Level: 5-7

Enemy brigantines launch harpoon barrages at your airship during a blockade.

Creatures

  • 2 Pirate Skiffs
  • 1 Brigantine Deckhand Crew

Terrain Features

  • Open sky corridor
  • Floating debris field for cover
  • Turbulent wind gusts impose disadvantage on ranged attacks

Treasure

Salvaged star-metal plating (crafting material), 200 gp

DM Notes

Use vessel combat rules; mix skill challenges for repairs and manning ballista.

Leech-Vine Hive

Deadly

Suggested Level: 6-8

Within a cavern on Ashen Leech Isle, players face a giant leech elemental and leech-vines that drain magic.

Creatures

  • 1 Leech Elemental
  • 3 Vine Leech Spawn

Terrain Features

  • Sticky vine patches slow movement by half
  • Magical suppression zones around vines
  • Pools of acidic sap deal ongoing poison damage

Treasure

1 Vial of Leechblood Essence (healing item), 150 gp

DM Notes

Spellcasters must make concentration checks (DC 14) in suppression zones; encourage using fire to clear vines.

Coral Guardian Sentinel

Hard

Suggested Level: 7-9

A massive living star-coral construct defends the Heart of the Reef against intruders.

Creatures

  • 1 Coral Guardian Sentinel

Terrain Features

  • Coral pillars provide partial cover
  • Pulsing sonic vents that force saves or be stunned
  • Slippery algae patches impose Dexterity checks

Treasure

Coral Fragment Shield (+1), 300 gp

DM Notes

Balance action economy with environmental hazards; sentinel regenerates when adjacent to coral pillars.

Comet Avatar’s Trial

Deadly

Suggested Level: 8-10

A spectral comet avatar descends in the Wishfall Crater to test the party’s worth, summoning cosmic illusions and starforged constructs.

Creatures

  • 1 Spectral Comet Avatar
  • 2 Starforged Guardians

Terrain Features

  • Shifting magical glyph patterns underfoot
  • Pools of starwater that heal or harm (choice)
  • Floating debris that can serve as cover

Treasure

Comet Core Shard, 500 gp

DM Notes

This encounter concludes a major quest; roleplay cosmic judgment and allow meaningful choices.

Magic Items

Astrolabe of Celestial Alignment

Rare
A crystalline astrolabe that always points to the comet’s next appearance. Guides seekers through astral hazards.

Location

Recovered from the Isle of Ashen Leech

Attunement

True (requires successful Navigation tool proficiency)

Moonlit Blade

Uncommon
A silvered shortsword wreathed in ghostly lunar light. Deals +1 radiant damage under moonlight.

Location

Reward from Under the Silver Moon quest

Attunement

False

Starlight Grenade

Rare
A glass sphere containing condensed starlight. Explodes in dazzling radiance, blinding foes.

Location

Crafted by Elysia Noyo in Port of Radiant Star

Attunement

False

Comet Core Shard

Legendary
Fragment of the wish-comet’s living core. Grants one powerful cosmic effect when shattered.

Location

Vault beneath Heart of the Reef

Attunement

True (attunes to cosmic rituals)

Drone of Tideguard

Rare
A small defense drone powered by starstone. Acts as a combat ally following simple commands.

Location

Sunken Spire salvage

Attunement

False

Eidolon’s Memory Shard

Uncommon
An iridescent crystal that stores ancient star-lore. Grants advantage on Arcana checks about cosmic events.

Location

Side quest in Celestial Reef

Attunement

False

Harpoon of the Sky-Serpent

Rare
A barbed harpoon etched with runes. On hit, slows targets by half for one round.

Location

Commodore Astra Ven’s armory

Attunement

False

Nautical Sextant of Tidal Alignment

Uncommon
An enchanted sextant that charts currents of astral waters, granting +2 to Navigation.

Location

Ghosts of the Shallows quest

Attunement

True (requires proficiency with navigational tools)

Coral Fragment Shield

Uncommon
A shield forged from living coral. Once per day, can cast Barkskin on wielder.

Location

Loot from Coral Guardian Sentinel

Attunement

False

Starmap Codex

Very Rare
A bound codex of starfall isles and cosmic pathways. Allows scrying spells to use star-etched targets.

Location

Hidden Star Vault

Attunement

True (arcane focus)

Player Characters

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