Tammas was born in Last Root, the hidden spring-fed notch where the Keepers of the Green Flame endured after the Vale died. His earliest memory is his mother's hands braiding reed-copper into his hair on the morning she and his father left with a trading party for the salt flats' edge. He was seven. The party never returned; the desert kept them, and no body or token ever came home.
Yeva—the last Keeper, his grandmother—took him in, and raised him on two diets: terraced garden food and stories. Stories of orchards where fruit hung black and sweet, of river-cities of gold and jade, of a sun-disk held aloft by kneeling figures, and of the day the disk cracked and the water was pulled out of the world. She taught him the bow on the switchback path, shooting at gourds over the spring.
She taught him the paths through the petrified forest, how to read a dune for shade, how to find water where the stone trees' roots once drank. And she taught him the greeting his people have carried for three hundred years: 'The dust remembers the rain.'
What she did not teach him was the cost of the binding. Tammas was fourteen when he first climbed to the Cliffside Temple alone and found the bare footprints that lead in and never out—an Abbot who died at his post rather than abandon the seal. He was nineteen when he pieced together, from fragments of ritual script and a dying elder's ramblings, that the Keepers' order fell not to the cult but to attrition: too few willing to die.
He has never told Yeva he knows. Instead he made a private vow, and has lived inside it since: if the seal must be renewed and no one else steps forward, he will.
The rest of his life was the desert. He guided water-runners to the flats' edge, traded glass-fruit gemstones through middlemen at Dunharrows Gate, and once led a runner named Sera out to the salt crust—she vanished a week before the Marchant Expedition arrived, and her loss sits in him like a splinter. When ash-wrapped pilgrims began appearing in the wastes, pouring water into the sand, Tammas was the first of Last Root to track them and understand: the Hollow Sun's cult was moving. He scouted the Ash Orchard and saw the digging. He watched the cult's campfires multiply on the Glass Flats.
So when strangers came down the switchback path—outsiders who carried sun-tokens torn from cultists and asked the right questions about the Vale—Tammas argued for them before Yeva's council. He believes the dust sends whom it sends, and it sent people who fight. Yeva named him the party's guide for the key-quests: the Seed in the Ash Orchard, the Sun-Disk in the Cliffside Temple, the River-Chalice in the Drowned Cavern. He knows he is walking his ancestors' graves with armed strangers, and he has made peace with it, because the alternative—waiting, as the Keepers waited for three centuries—killed the world once already.
He is friendly but not naive, generous with water and stingy with trust, and he measures allies by a single standard: what they do when the water runs low. Party members who share their last skin at Dryfall, who speak gently to the Abbot's ghost, who defend Last Root's terraces, will find in Tammas the truest friend the Vale can offer—and, if the finale demands it, a young man who steps into the green light of the Hollow Sun's cage without hesitation, whispering that the dust remembers the rain, and asking to be the water.
