Nyx Thorn was born in the northern eaves of the Thornwood, in a grove her family had guarded for nine generations. The Thorns were trail-wardens: they mapped the forest's hidden paths, marked the Edge stones that humans were permitted to approach, and kept the old blind-nests from which Concord scouts watched the burned Marches. Nyx learned to walk softly before she learned to read, and she shot her first rabbit at six with a bow cut to her height from Thornwood yew.
The war changed everything. In its second year, human soldiers — frightened, furious, and told the elves had poisoned their wells — burned a chain of groves along the border. The Thorn grove burned in a single night. Nyx's parents did not come out of the smoke. What came out was her uncle Malrec, ash on his shoulders and an eleven-year-old girl over his arm, and what came out of Nyx was a scream that, she says, the forest still remembers.
Malrec raised her afterward, in the way of a man raising a weapon. He taught her the short sword, the poison-arrow, the hit-and-run craft of the deep woods. He also taught her grief dressed as certainty: humans burned, humans always burn, the only safe forest is one with no humans near it. Nyx absorbed it all, because he was the only family she had left and because his fury looked, from inside, like love.
But the Concord had other teachers. Theris Mossbeard, the old druid who had carried children out of fires before Malrec was born, took the girl on his rounds and taught her the slower lessons: that the forest forgives burned ground in a decade, that hatred burns longer than fire, that a ranger's first weapon is patience. Under Theris, Nyx learned to read the forest's memory — where old fires had been, where new ones were being fed. Under both teachers at once, she grew into a ranger with two souls, and she knew it.
The crack came during a patrol assignment. Riel, her scouting partner and Malrec's rising lieutenant, was ordered to burn a human farmstead whose owner had sheltered Accord soldiers. Nyx went ahead of him in the night and warned the family out. Riel found the cold hearth and the empty beds and reported her to Malrec. Malrec said nothing — no punishment, no praise — and Nyx understood she had been tested without knowing it, and that she had failed her uncle's test and passed her own.
Since then she has lived a double life: the Concord's diligent young ranger by day, a quiet gatherer of evidence by night. She saw a gray-hooded man paying human soldiers after the grove-burning and never told Malrec, because she was afraid of what he would do with the knowledge — or what he already knew. She took a torn page from a dead Choir cultist's hymnal and hid it in her boot, unable to read its cipher but certain it named a place and a day.
She has been assembling, piece by piece, a picture she does not want to be true: that someone is buying her uncle's rage, that the fire that made him is being sold back to him as a weapon, and that the Forest Heart — the oldest, holiest ground of the Thornwood — is the anvil where that weapon will be forged.
When Captain Eldrin's neutral investigators came asking questions at Thornwood Edge, Nyx watched them from a blind for two days before deciding they were the first outsiders in years who might actually want the truth rather than a side. She is torn between loyalty and doubt, and she knows it. What she wants from the party is not rescue but company: someone to stand beside her when she finally reads the ledger, someone to witness what she chooses.
She can lead them to Malrec's camp if they earn her trust — and if they prove what the Choir papers say, she will turn on the man who pulled her from the fire, because the forest he would burn is the one her family died guarding, and Nyx Thorn has finally decided which Thorn she is.
