Serafina Sylhorn is a lithe half-elf woman with sharp amber eyes, long silver-brown hair usually braided for silence, and a foxlike smile that appears only when she is certain she has already won. She favors dark leathers fitted for climbing and quick escapes, with a crimson scarf hidden beneath her collar like a private insult to authority. A faint scar crosses one knuckle, and her ears are adorned with simple iron rings taken from a judge's fallen signet box.

Serafina is wry, observant, and impossible to bully. She enjoys solving problems that other people mistake for walls, and she has a habit of treating danger like an elaborate puzzle. Beneath the swagger, she is cautious with trust and unexpectedly generous to anyone trapped by circumstance.

Serafina Sylhorn was born at the edge of two worlds and trusted by neither. Her elven mother taught her how to listen for the shape of lies, while her human father, a failed lockmaker with too much pride and too little coin, taught her that doors existed to be opened. She learned early that a well-timed smile could get her into a noble hall, and a well-placed knife could get her out of one. When hunger tightened around her family, Serafina took to the city gutters and found work where work was never advertised, carrying messages, mapping patrol routes, and slipping through windows no servant could reach.