Miri is a compact young woman with the stillness of someone waiting for a door to open. She stands beneath broken streetlamps with her weight resting on the balls of her feet, never quite touching the center of a paving stone. Her hands are unusually memorable: the fingertips are flattened and polished from years of manipulating locks, while the nails are kept extremely short and stained faintly blue by marking chalk. She moves with careful economy, turning her shoulders before her hips and letting her coat settle before taking the next step. Her face is plain at first glance, but her attention is not. Her eyes travel to windows, rooflines, drainage gaps, and the feet of strangers before ever meeting their gaze. The unexpected contradiction is that her severe, watchful silhouette is softened by a small, almost maternal habit of smoothing dust from the shoulders of frightened children and stray animals.

Miri is patient with frightened strangers but harsh with people who claim authority. She can be tender in private and ruthlessly practical in public. She distrusts grand declarations yet is secretly moved by acts of theatrical courage. When calm, she is dryly humorous and observant. When cornered, she becomes nearly emotionless, speaking with such courtesy that her threats sound like invitations. She wants to be good, but she measures goodness by consequences rather than intentions, which often leaves her lonely.

Miri was born in Kest, a market town abandoned after its wells turned bitter and its trade road shifted east. Her mother repaired lamps for the town council, and her father vanished while carrying sealed guild correspondence through the old aqueduct. At thirteen, Miri discovered that his disappearance had not been an accident. He had stolen a ledger proving that several respected merchants had arranged the town's ruin to acquire its land cheaply. Before she could expose them, the merchants burned the council archive and blamed the fire on her mother. Miri survived by sleeping inside an empty cistern, where a retired burglar named Odo found her and taught her locks, codes, and the discipline of waiting. The formative experience that changed her came when Odo was arrested for a theft Miri had committed. She remained silent because speaking would have exposed the guild network sheltering her. Odo disappeared into a prison barge, and Miri has never forgiven herself for choosing the larger cause over one person. Now she keeps watch in deserted Kest for three guild couriers carrying the final page of her father's ledger. The couriers are late, one has likely betrayed the others, and a former friend from the guild has begun hunting them.