Brenna Corvo is a weathered, physically imposing human woman whose presence makes narrow catwalks feel narrower. Her short-cropped iron-brown hair lies flat against her scalp except for one stubborn lock above her left temple. Her face is cut by a determined jawline, a pale scar through the lower lip, and steady gray eyes that seem to measure every hinge, exit, and handhold in a room. Her lacquered steel breastplate is dark as quenched oil, scuffed at the ribs and polished only where countless workers have gripped it for reassurance. She moves with the deliberate economy of a crane operator, never hurried, never wasting a step, yet capable of explosive violence when someone nears a gear shaft or open counting pit. The unexpected contradiction is her hands: enormous, callused, and scarred from years of fighting, they are also obsessively gentle with damaged clocks, injured birds, and frightened children.