Maite is slight and petite, with warm ivory skin that flushes pink in the cold and damp, jaw-length dark brown curls that cling to her forehead after rain. Amber flecks brighten her hazel eyes. She balances as if the pavement might become a roof at any moment, one boot often braced against a rail; even standing still, she seems poised to slip through a gap before anyone notices. Her quick, guarded smile can look like an apology or a dare. She takes up little space by habit, but watches everyone who does. An unexpected softness in her practical look is the tiny brass swallow charm she keeps polished bright enough to catch lamplight.

Maite is alert and quick to offer help, yet slow to reveal what she wants for herself. In a crisis she becomes decisive and brisk; afterward she replays every choice until she cannot sleep. With children and nervous strangers she is patient and lightly teasing. With officials who dismiss the neighborhood, she turns clipped and stubborn. She wants to be trusted, but resents being treated as if she belongs to everyone who needs rescuing.

Maite grew up above a drainwright's shop in the rain-choked Old City, learning which gutters held and which brickwork crumbled underfoot. Her mother, Idoia, repaired storm channels; her father vanished when Maite was nine, leaving behind a hand-drawn map of passages beneath the rooftops. At sixteen, Maite guided a group of neighbors across the roofs during a sudden flood. A roof gave way under her older brother, Andoni, and she had to choose between reaching him and leading three trapped children to safety. She got the children out. Andoni survived, but never forgave her for leaving him with a shattered leg and a lifetime of pain. That choice made Maite a trusted guide and a person who cannot bear to leave anyone behind, even when staying is foolish. She now marks safe paths for couriers, tenants, and anyone fleeing danger, while trying to keep a rooftop garden alive for her mother. The landlord's agent, Olúra, has begun sealing old access stairs before a planned demolition, and Maite is racing to document the hidden routes before the neighborhood is cut off.