Brundin looks carved by years of forge heat and mountain weather: his cheeks are wind-roughened and ruddy, the skin at his temples dry as old parchment, and fine black grit lives in the creases beside his nose. He moves with a measured, slightly forward-leaning gait, as if the floor might give him news through his boots. Before he speaks, he takes a short, audible breath through his nose and waits, listening for an answer from the room. Unexpectedly for a runemaster, he keeps a tiny sprig of dried mountain thyme tucked into his breast pocket and checks it like a keepsake.

Brundin is methodical and sincerely protective, but the same caution that makes him dependable also makes him evasive. Around workers, he is dryly funny and attentive to practical needs; around officials, he becomes formal and guarded. When tired, he grows stubborn and mistakes silence for control. Faced with a crisis, he can act decisively, then spend days second-guessing every choice.

Brundin was raised in a stone-cutting hamlet where his mother taught him letters by tracing them in flour and his father taught him to hear when a block was under stress. He apprenticed under Forgemaster Brynna Kettlestone, first as a furnace tender, then as a rune-reader trusted to inspect the mountain forge's old bindings. Years ago, during a tremor, Brundin misread a hairline fracture as harmless settling. A binding failed, a surge of heat killed two workers, and Brynna took public blame to keep the council from shutting the forge. Brundin has never stopped hearing the crack that preceded it. He became patient, exacting, and privately terrified of making another confident mistake. Now the old bindings are failing more quickly, and a shard needed for their repair lies near a sealed force beneath the forge. Brundin has asked adventurers to recover it without disturbing the seal. He wants the work done before the council's inspectors arrive, but he also knows that concealing the truth may leave the next crew in danger.