Cevrik is a compact, broad-shouldered gnome with the posture of someone perpetually leaning over a workbench. His close-cropped hair is brushed into a precise ridge, and a tiny brass comb is always tucked behind one ear. He moves in quick, measured starts, stopping abruptly to inspect a hinge, a cloud, or a stranger's boot buckle. He smells faintly of hot oil and bitter orange. Unexpectedly for a traveling weaponsmith, he keeps his nails buffed and polished with clear lacquer, and checks them before important conversations.

Cevrik is generous with his labor and guarded with his feelings. He can be patient with a failing machine for hours, yet abruptly impatient with a person who refuses to admit they are hurt. In a workshop he is exacting and calm; at a feast he becomes dryly funny, then vanishes outside when the room grows too loud. When ashamed, he overexplains. When someone is in danger, he stops explaining altogether.

Cevrik grew up repairing water clocks and mill gears in the gnome settlement of Sedgewick, where his mother, Bess, taught him that a machine should be easy to mend by the person who depends on it. At twenty-six, he apprenticed under a celebrated armorer, Master Hobb, and learned the opposite lesson: beauty and secrecy could be worth more than reliability. During a siege, a concealed flaw in one of Hobb's commissioned devices killed several defenders, including Cevrik's closest friend, Sella. Cevrik abandoned the workshop and spent years rebuilding equipment for people who could not afford a proper smith. He made Hush from the salvaged frame of a signal beacon, giving the heron a little brass bell because Sella used to laugh at the beacon's solemn chimes. Now he travels between isolated villages, repairing bridges and tools while pursuing evidence that Hobb knowingly sold defective weapons. His mother wants him home; Hobb's former patrons want the evidence buried; and Hush has begun repeating a beacon signal that Cevrik cannot identify.