Ossian Vey, the Unkeyed Warden

Level 15 : Human Wizard (Warden-Archivist (custom: Archivist tradition of the first Wardens))

Available with DM subscription

STR

8 (-1)

DEX

14 (+2)

CON

14 (+2)

INT

16 (+3)

WIS

12 (+1)

CHA

Defense

Armor Class 13 (unarmored (10 + DEX +3, Mage Armor when cast: 16))

Hit Points 92 (15d6 + 30 +2)

Speed 30 ft.

Proficiencies & Skills

Saving Throws Intelligence, Wisdom

Skills Arcana +8, History +8, Insight +6, Perception +6, Persuasion +5, Investigation +8

Features

The Master Key

Custom (artifact attunement) Level 15

special

Ossian carries the Master Key of the Grand Cage, a column of interlocking rings and gears he can wield as a quarterstaff (1d8 bludgeoning, +2 to hit). As an action he may attempt one of the following, each once per turn: (1) Unkey the Ground — a 20-foot-radius circle of floor within 60 feet becomes unlocked from the Engine; creatures in it make a DC 16 Dexterity saving throw or fall or slide 30 feet (2d10 bludgeoning). (2) Turn the Machinery — one gear, lift, bolt or construct within 120 feet obeys his intent for 1 minute (DC 16 Intelligence check by a creature to resist control of its own mechanism). (3) Jam-Proof — the Master Key cannot be picked, dispelled (below 9th level) or destroyed by any means short of a Warden's oath spoken over it.

Three Turns of the Key

Custom (finale clock) Level 15

special

Ossian's true goal in combat is not the party's death but the completion of his three turns. Each turn of the Master Key takes 5 rounds of uninterrupted work at the lock; he may make progress on a turn whenever he is not pressed in melee. When reduced below one quarter of his hit points, he abandons defence and spends his remaining actions on a final turn rather than attacking.

Warden-Archivist's Keycraft

Custom (Warden Archivist tradition) Level 1

Ossian has spent a lifetime among the Grand Cage's locks. He is always considered proficient with thieves' tools and tinker's tools for purposes of Warden locks, key-bolts and Cage machinery, and he can read the key-frequency of any keyed mechanism he can hear within 60 feet (no action required).

Voice of the Choir

Custom (Mistbound Choir loyalty) Level 15

1/day

Ossian may call on the Choir's resonance once per day: every enemy within 60 feet makes a DC 16 Wisdom saving throw or has disadvantage on its next attack roll as the Mist's song floods the room. Ossian himself is immune to the Mist's psychic pressure and its song-based charms.

Signature Spells (adapted)

Custom (Warden Archivist tradition) Level 15

1/long rest each

Ossian has practised two 3rd-level spells to near-innate fluency: Knock and Counterspell. Once each per long rest he may cast one of them without expending a spell slot (Knock is always cast at 3rd level for him, its sound muffled by keycraft).

Scholar

Wizard Level 1

Two of Ossian's Intelligence-based skill proficiencies gain Expertise: Arcana and History. He adds twice his proficiency bonus (+10) to checks with them.

Spell Mastery

Wizard Level 18

Not yet gained at level 15; Ossian's mastery instead expresses through his year of undisturbed work in the Cage Core.

Spellcasting

Intelligence DC 16 +8 to hit Level 1: 4 slots Level 2: 3 slots Level 3: 3 slots Level 4: 3 slots Level 5: 2 slots Level 6: 1 slots Level 7: 1 slots

Ossian's spell list is drawn from the Wizard spell list per SRD 5.2; Knock and Counterspell are his Signature Spells (1 free cast each per long rest). His prepared list at 15th level is trimmed for table-readiness; the DM may swap spells between scenes to reflect his year of preparation.

Mage Hand (the Unkeying Hand)

Cantrip Wizard

Conjuration 1 action 30 feet V, S

A spectral hand appears; Ossian uses it to turn small keys, lift wedges and work locks at range. It cannot attack or cast spells.

Message

Cantrip Wizard

Transmutation 1 action 120 feet V, S, M

Ossian whispers a message to a target he can see; the target hears it in his calm, courteous voice.

Minor Illusion

Cantrip Wizard

Illusion 1 action 30 feet S, M

Ossian creates a sound or image — most often the Mist's low, patient hum, to unsettle listeners.

Mending

Cantrip Wizard

Transmutation 1 minute Touch V, S, M

Ossian repairs a break in a mechanism or object, restoring 1 HP to a construct or mending a key-bolt's cosmetic damage.

Shield

Level 1 Wizard

Abjuration 1 reaction Self V, S

+5 AC against one attack and immunity to Magic Missile until the start of Ossian's next turn.

Comprehend Languages

Level 1 Wizard

Divination 1 action Self V, S, M

Ossian understands any spoken or written language for 1 hour — including the scratched names in the Hall of Keys' socket.

Detect Magic

Level 1 Wizard

Divination 1 action Self V, S

For 10 minutes, Ossian senses magic within 30 feet and identifies schools of magic.

Knock

Level 2 Wizard

Transmutation 1 action 60 feet V

Ossian unlocks any lock, keyhole or restraint within range — the signature of the Unkeyed Warden. His version's knock is muffled to a soft chime.

Arcane Lock

Level 2 Wizard

Abjuration 1 action Touch V, S, M

Ossian seals a door or mechanism, doubling its DC and designating himself (or a Crew member) as exempt.

Misty Step

Level 2 Wizard

Conjuration 1 bonus action Self V

Ossian teleports 30 feet to an unoccupied space he can see, stepping through a curl of grey fog.

Counterspell

Level 3 Wizard

Abjuration 1 reaction 60 feet S

Ossian interrupts a spell of 3rd level or lower automatically; higher levels require an ability check (DC 10 + spell level).

Fly

Level 3 Wizard

Transmutation 1 action Touch V, S, M

Ossian grants himself or an ally a flying speed of 60 feet for 10 minutes — essential on the Cage's gantries.

Dimension Door

Level 4 Wizard

Conjuration 1 action 500 feet V

Ossian teleports himself and one willing creature to any spot within range he can visualise, including the lock's shoulder.

Greater Invisibility

Level 4 Wizard

Illusion 1 action Touch V, S

Ossian becomes invisible for 1 minute while continuing his turns of the Key.

Telekinesis

Level 5 Wizard

Transmutation 1 action 60 feet V, S

For 1 minute, Ossian moves a creature or object up to 1,000 pounds with his mind (CON save each round to escape, DC 16) — turning the heart-room's machinery against the party.

Wall of Force

Level 5 Wizard

Evocation 1 action 120 feet V, S, M

An invisible, immovable wall of force for 10 minutes, used to seal the party away from the Master Key while he completes a turn.

Behind the character

Character Information

Ossian Vey is a tall, spare man of sixty in a long grey Warden-Archivist's coat, brass key at the collar, sleeves rolled and smeared with gear-grease. His white hair is tied back; his hands are a scholar's hands, ink-stained and oil-stained both, and they have spent a year inside the Grand Cage's gears. His eyes are calm, courteous, and absolutely certain — the certainty of a man who has read the sealed records of the first Wardens and drawn, from them, the only conclusion that seemed available. He is not a fanatic. He is worse: a careful, patient, honest man who is wrong.

He speaks to enemies as colleagues. He explains his reasoning at length, cites his sources, and is genuinely interested in counterarguments, which he has never heard from anyone who survived to give them. He does not gloat. He does not lie. He offers surrender twice in any fight, never targets a downed foe, and will pause mid-battle to answer a question accurately if the question is good. He calls the Deep Mist the Open Hand, and he has never heard it speak — only sing.

He carries the Master Key of the Grand Cage like a scholar holding a book he was finally allowed to read: a column of interlocking brass rings and gears, warm, slowly turning, singing a low note he believes is gratitude. He wields it as a quarterstaff and works it as a lock-tool, and he is three turns from unkeying the Cage that has held the world together for a thousand years.

He is the last Warden-Archivist of the Grand Cage, and its unmaker, and he is courteous to the end because he believes the end is a beginning.

Before the adventure

Character Background

Ossian Vey was born on the Second Ring, the son of a tally-keeper and a bolt-wright, and was taken into the Keywardens' archivist tradition at eleven because he could hear a key's frequency in the sound of a door closing. The Warden-Archivists were the order's smallest and strangest branch: engineers who read, priests who counted, scholars who maintained the Grand Cage's records and its locks both. There were eleven of them when Ossian was sworn. There was one — him — when he broke the seal on the first Wardens' records.

He spent forty years as a working Archivist: cataloguing key-frequencies, maintaining the Bastion locks, teaching apprentices the Keycraft that lets a Warden hear a mechanism's intent in its sound. He was good at it, and beloved of it, and he never once questioned the Cage. The Cage was the world's floor. You did not question the floor.

The questioning began with the Warden-Prime's disappearance a year ago, and with the sealed records. Elowen Vane had been missing for a month; the order was falsifying its reports; Slivers were drifting. Ossian, sent to the Hall of Keys to audit the archive, found the first Wardens' sealed cabinet unlocked — someone had been there before him — and read the records in a single night. They described the Grand Cage not as a prison built to hold the hundred Slivers, but as a lid built to hold something out. The Mist was alive. The Mist was one mind. The first Wardens had chained it outside the world and called the chaining an Engine.

He drew the wrong conclusion, and he drew it honestly: that the Cage was a blasphemy, the Slivers were prisoners, and the Mist was a god the Wardens had stolen the world from. He took the Master Key from the Hall of Keys — he had the right, as Warden-Archivist, and no one was left to stop him. He cracked the Threshold from the inside. He found the Ratchet Crew, who had been unkeying Slivers for a decade and needed a master; he gave them his fragment of the Key and his seal of authority.

He found the Mistbound Choir, who had been singing to the Mist for years and needed a prophet. He imprisoned Elowen Vane in the Cage's lock when she refused to stand aside, and he does not talk about that.

He has spent a year in the Cage Core, in the ruined Unkeyed Ward, working. He has catalogued the first Wardens' city, woken nothing he should not have, and turned the Master Key twice. The Deep Mist is coming in through the cracks in the walls like water through a hull, and it is singing, and he believes the song is a welcome.

He is three turns from finishing. He would rather win with words. He has never once heard the Mist speak.

Threads to follow

Unresolved Plots

Ossian has never heard the Deep Mist speak — only sing — and he has built a year of certainty on a song he cannot translate. If the Mist ever speaks to him, in words, everything he believes changes in a single sentence, and no one knows which way.
The fragment of the Master Key he gave to Marisel Quill has been singing to him in his dreams for a year, and the dreams have become a counting. He does not know what is being counted, or by whom, or what happens when the count finishes.
Warden-Prime Elowen Vane has spent a year inside the Cage's lock learning its every gear, and Ossian does not know what she has learned. He sealed the lock and has not looked inside since, because looking would mean admitting what he did.
The sealed records of the first Wardens contain an addendum written after the Mist ate the first ring, which Ossian never read because he read the archive in catalogue order. Sable Vey knows it exists. He does not.
Vessaline Roke has been following the party through all three acts, letting them clear the way to the Master Key, and Ossian knows she is coming. He has planned for her arrival at the end of his third turn — but he has not planned for what she does if the Cage is already open.

Beneath the surface

Secrets

Ossian's sister Sable Vey has been hiding in the Unkeyed Ward for a year, cataloguing everything he takes, and he knows she is there. He has left her alive because he cannot bring himself to do otherwise, and he has told no one — not the Crew, not the Choir — that the last Archivist of the Cage is his own sister and is working against him from inside his own headquarters.
Ossian has never once heard the Deep Mist speak. Every certainty he holds about the Mist being a god rests entirely on its song, which he has interpreted for a year without once testing the interpretation. He is not sure. He has never been sure. He is certain only that he cannot stop now.
Ossian imprisoned Elowen Vane in the Cage's lock rather than kill her, against his own stated principles and against the Crew's advice, and he visits the lock's keyhole once a week to leave food he is not sure she can reach. If the Crew knew, they would call it weakness. If the Choir knew, they would call it heresy. He calls it nothing at all.

What haunts them

Fears

That the Mist's song is not a welcome but a hunting call, and that everything he has done for a year has been the sound of a door being opened for something that eats.
That Sable Vey is right, and that the argument she has been writing in her notebook for a year is the argument that would have stopped him — and that he will hear it only after the third turn is done.
That Elowen Vane, inside the lock, has already re-keyed the Cage from within, and that his three turns are turning against a lock that is no longer there.

What drives them

Aspirations

To complete the three turns of the Master Key and let the hundred Slivers drift free into what he believes is paradise — and to be standing on the Key's shoulder, close enough to hear, when the Mist finally speaks.
To be proven wrong by someone worth being proven wrong by. He has said so to Sable, once, through a closed door, and meant it.
To be forgiven by Elowen Vane, which he will never ask for, and which he thinks about every time he leaves food at the lock's keyhole.

Personal quest · 1

The Sealed Records

Ossian's certainty rests on the first Wardens' sealed records, which he read in a single night in the Hall of Keys' archive. But he read them in the order they were catalogued, not the order they were written. Sable Vey has found evidence that the Wardens wrote a final addendum after the Mist ate the first ring — an addendum Ossian never saw, which explains the Cage is a lid.

Ossian offers a personal errand to any 'colleague' who will descend into the flooded root-vaults beneath the Unkeyed Ward and retrieve the addendum's key-plate from the Keyless Custodian's heap. He genuinely wants the plate read aloud to him. If it proves him wrong, he says, he will want to know — though no one has ever survived long enough to test whether he means it.

Current Stage

Descend into the flooded root-vaults beneath the Unkeyed Ward and survive the Keyless Custodian, a three-hundred-year-old brass guardian still protecting the Hall of Keys' empty socket.

Choice

Fight the Custodian, or recite the Warden's oath aloud and mean it, which renders the party invisible to its guardianship.

Fighting it collapses the vault and buries the addendum's key-plate under a hundred tons of brick. Speaking the oath marks the character as a true Warden in the eyes of Gate-Warden Nim and the Cage itself.

Mechanical Rewards

Sable's Archive Lens (rare wondrous item) if the addendum is recovered intact.
The Warden's Oath trait for the character who spoke it.
Advantage on all Charisma checks to turn Ossian Vey in the finale if the addendum is read honestly.

Narrative Rewards

Ossian regards the character as the first colleague worth arguing with, and will answer any one question about the Cage's making truthfully.

Personal quest · 2

The Fragment's Song

Ossian broke a fragment off the Master Key and gave it to Marisel Quill for the unkeying engine, and the fragment has been singing to him in his dreams ever since — a low, patient hum he believes is the Mist's gratitude. It is not. The fragment is a piece of the Cage's own key-metal, and it is trying to tell him what the Cage's key-metal knows: that the Mist is one mind, and it is hungry.

Ossian asks the party — as a courtesy between professionals — to bring him the fragment from the Driftline or from Quill's defeated engine, so he can hold the whole Key in his hands for the first time in a year. He does not explain why. He does not know why himself, only that the dreams have become a counting, and the counting is nearly finished.

Current Stage

Take the Key-Fragment from Marisel Quill's unkeying engine at the Driftline, either by defeating her, trading for it, or sabotaging the engine and taking the core from the wreckage.

Choice

Deliver the fragment to Ossian as asked, or keep it — the fragment, attuned by a sworn Warden, can unkey or re-key one Sliver on its own.

Delivering it gives Ossian the whole Key's song in his hands, which accelerates his turns in the finale by one round each. Keeping it gives the party a legendary item that can save a drifting Sliver — but Ossian knows exactly where it is, because he can hear it.

Mechanical Rewards

The Key-Fragment of the Master Key (legendary wondrous item), if kept rather than delivered.
The Mist's Ear trait for the character who listened and saved.
One round shaved off each of Ossian's turns in the finale if the fragment is delivered, which the party can spend jamming the Key instead.

Narrative Rewards

Marisel Quill, defeated or turned, reveals the service shaft from the Driftline to the First Ring and the Crew's full route into the Cage Core.

Personal quest · 3

The Warden-Prime's Year

Ossian imprisoned Warden-Prime Elowen Vane inside the Grand Cage's lock when she refused to unkey the Cage, and he has spent a year telling himself — and the Ratchet Crew, and the Choir — that she is comfortable, and fed, and free to change her mind. He is lying to himself, and he half knows it. He offers the party a personal errand that no Crew member will take: carry a message to Elowen through the lock's keyhole, in his own handwriting, offering her freedom if she will only stop resisting.

He does not say what she must stop resisting. He does not know. He only knows that she is the last person who ever argued with him and was worth arguing with, and that he has not slept well since he sealed the lock.

Current Stage

Reach the Grand Cage's lock, find Elowen Vane inside it, and deliver Ossian's message through the keyhole.

Choice

Deliver the message as written, or read it first and decide Elowen deserves to hear what it actually says.

The message is a year of self-justification, and Elowen has spent that year learning every gear of the Cage from inside. She reads it, laughs once, and asks the messenger to carry back her answer: 'Tell my colleague I have been counting the gears. There are three hundred and sixty-five of them. One for each day he has been wrong.'

Mechanical Rewards

Warden-Prime Elowen Vane as a fighting ally in the finale.
The Warden-Prime's authority trait, if a character speaks the oath themselves.
A Warden's commission for each character, if Elowen re-keys the Cage.

Narrative Rewards

Elowen tells the party plainly what the Cage is and what the Mist is, and her account carries weight with Sable Vey that no one else's does.

Major Decision

Context

Ossian offers the party a choice at the Threshold of Keys: take Gate-Warden Nim's oath and enter as Wardens, or squeeze through the crack Ossian himself left and enter as intruders.

Choice Made

Take the Warden's oath and become Wardens, or refuse it and enter the Cage Core unsworn.

Impact

Taking the oath makes the character a true Warden in the Cage's own eyes: the Warden Gear-Husks will not attack them, Nim opens the door freely, and they can speak the oath over the Master Key in the finale. Refusing keeps them free of the order's obligations but costs them the Threshold Key, the Husks' forbearance, and the ability to re-key the Cage without Sable Vey's help.

Major Decision

Context

In the heart-room, Ossian offers surrender twice. The second offer is real: he will stop, hand over the Master Key, and let the party decide the Cage's fate — if they can tell him, in one sentence, what the Mist is.

Choice Made

Accept his surrender on his terms, refuse it and fight, or answer his question honestly and try to turn him.

Impact

Accepting the surrender ends the fight but leaves the Cage's fate — and the Master Key — in the party's hands with Ossian alive and watching. Refusing forces the three-turn fight at full strength. An honest answer, if the party has the evidence from Sable's tally or the Mist's own song, can turn him entirely: he breaks, and re-keys the Cage himself with his dying breath, which is the campaign's best ending.

Major Decision

Context

If Ossian is reduced below a quarter of his hit points, he abandons defence and spends his remaining actions on one final turn of the Key. The party can kill him in that state, jam the Key, or let him finish the turn and see what the Cage's lock actually does at the last.

Choice Made

Kill him, jam the Key and save him for questioning, or let the final turn complete.

Impact

Killing him drops the Master Key to the party and the Cage can still be re-keyed, but Sable Vey will never forgive it and the Choir becomes a hunted remnant. Jamming the Key keeps him alive and broken, and he will answer any question truthfully for the rest of his life. Letting the final turn complete opens the Cage's first ring — and reveals, in the last ten seconds, that the Mist is already inside the lock, and has been for a year.

Transformative Moment

Trigger

The character speaks the Warden's oath over the Master Key, or watches Ossian do it with his dying breath.

Transformation

The character hears, for one moment, what the Mist's song actually is — and can never again mistake any singing for a welcome. They gain the Mist's Ear trait permanently.

Mechanical Changes

traits

Gains Mist's Ear: immunity to the Deep Mist's song-based charms and psychic pressure, and advantage on Perception checks to identify mist-touched creatures.

The Mist's song, heard once at the source, cannot be unheard or misheard again.

Transformative Moment

Trigger

The party completes Sable Vey's tally of the eaten Slivers and reads the names aloud in the heart-room.

Transformation

Ossian Vey, confronted with the count of the dead his liberation has already made, stops mid-turn for the first time in a year. The party gains the argument that turns him.

Mechanical Changes

encounter_state

Ossian's three-turn clock pauses for one full round, and all Charisma checks to turn him in the finale are made with advantage.

He has never heard a counterargument from anyone who survived to give one. The tally is the first.

Transformative Moment

Trigger

Warden-Prime Elowen Vane is freed from the lock and fights beside the party.

Transformation

Elowen has spent a year learning the Cage's every gear from inside. Freed, she can turn the heart-room's machinery against Ossian's own unkeying work, reversing his progress one round at a time.

Mechanical Changes

ally_ability

Elowen can reverse one of Ossian's completed turns as an action once per turn, forcing him to begin it again.

She knows the lock's interior as no one else alive does, because she has been living in it.

Ally

Marisel Quill, the Ratchet

Relationship loyal lieutenant

Influence 8/10

Loyalty 9/10

Shared History

Marisel was an Enginewright of the Keywardens until the order unkeyed her family's Sliver as punishment for a debt she did not incur, killing her parents and her youngest brother. Ossian found her three years later in a salvage camp on the Driftline, working as a rope-walker, and did not recruit her so much as explain the Cage to her for four hours without stopping. She joined the Ratchet Crew that night.

She built his unkeying wedges, his engine, and his network of cells in every ring, and she broke a fragment off the Master Key with her own brass hand because he asked her to. He trusts her absolutely, and she has never once asked him what happens to the people on the Slivers that drift. She knows the answer. She does not want to hear it said aloud by the man she has decided to follow.

Potential Breaking Points

If the party frees her niece Lira Quill and shows her that the Mist eats what it takes, she will sabotage her own engine and guide them down the service shaft.

Enemy

Warden-Prime Elowen Vane

Threat Level 7/10

Conflict Type ideological and personal

Personal Stakes

Elowen was Ossian's superior, his friend, and — for thirty years — the only person in the order who read the sealed records with him and drew the opposite conclusion. They argued about the Cage for three decades, courteously, over tea in the Warden-Prime's Seat, and neither ever convinced the other. When the records finally settled it for Ossian, he went to her first, and asked her to stand aside.

She refused, and he sealed her inside the Cage's lock, and has spent a year telling himself she is comfortable. She has spent the year learning every gear of the Cage from inside, and she intends to re-key it over his work — or over his body. He does not hate her. He has never stopped considering her the finest colleague he ever had, which is precisely why he cannot afford to let her out.

Possible Resolutions

She can be freed and turned against him in the finale, where her knowledge of the lock's interior lets her reverse his completed turns.
She can be left in the lock, where she will re-key the Cage herself if the party jams the Master Key long enough for her to reach the oath-mechanism.

Faction

The Mistbound Choir

Standing 9/10

Influence

The Choir believes Ossian is a prophet sent to unchain their god, and Ossian has never corrected them, because their correction would require him to admit he has never heard the Mist speak. Ilse Marrow, the Hollow Cantor, sings the Mist into the Engine from Marrow Spire and calls him the Open Hand's chosen; he finds her theology imprecise but her utility considerable. The Choir softens the Cage from within while his Crew unkeys it from without, and the two campaigns have run in parallel for a year without either leader fully acknowledging the other's methods.

Ossian grants the Choir one Voice of the Choir's resonance per day in the heart-room, which is more than he has ever granted anyone, and he does not examine why. If the Choir ever learned that the Mist eats what it takes, they would turn on him — and he knows it, and he has quietly made sure that no Choir singer has ever stood on a Driftline when a Sliver goes in.

Obligations

He cannot publicly contradict the Choir's theology without losing their support in the finale.
He owes Ilse Marrow one truth about the Mist, which he has owed for six years and has never paid.

Benefits

Voice of the Choir (1/day): every enemy within 60 feet makes a DC 16 Wisdom saving throw or has disadvantage on its next attack roll.
The Choir's singers defend the heart-room in the finale and will die for him.

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