Hark is lean and rangy, with a hunter's economical stride and a stillness that makes him seem to have stopped mid-step even while moving. His weather-browned skin is crosshatched by pale lines from years of thorn scrub, and his dark hair is clipped close except for a stubborn, uneven tuft at the crown. A little brass child's whistle hangs at his throat on a cord polished dark by his thumb; its mouthpiece is dented and strangely clean. He wears the serious, watchful expression of someone always counting exits, yet keeps a tiny folded paper bird tucked behind one ear, a ridiculous scrap of gentleness for a trained tracker. He leaves the impression of a hound that has learned to read maps.

Hark is protective but distrustful, disciplined yet quietly disobedient. In a crisis he is brisk and decisive; around Ciena he turns rigid and obedient, then later resents himself for it. Among children he becomes unexpectedly gentle and almost playful. He can be compassionate without being warm, and his dry humor appears only when he feels safe enough to be misunderstood.

Hark was born Toma, the son of a charcoal burner in a border hamlet. At seven, raiders took him and several other children during a winter evacuation. Ciena found the survivors, fed them, taught them to track, and gave each a new name with a new purpose: willing warriors, she said, would never be helpless again. She forbade romance and close attachments as weaknesses that enemies could exploit. Hark became her quietest scout, good at finding trails and better at making himself disappear. Years later, during a failed ambush, he found a little boy hiding beneath a cart and heard the child whisper his own old name. Hark let the boy escape instead of reporting him. Since then, he has secretly gathered the Huntsmen's birth names, scratched onto scraps and hidden in the hollow of a fallen boundary marker. He remains bound to Ciena by gratitude and fear, but his bond with fellow scout Kettu has become something neither dares name. Ciena has noticed his absences and ordered him to lead a new search for the escaped child before the child can tell anyone what he saw.