Mira is a slight young woman who appears almost motionless until she decides to move. She waits with her weight on the balls of her feet, one heel hovering just above the floor as if she expects the library itself to shift beneath her. Her gestures are economical, but her attention is restless, traveling from lock to hinge to shadow before settling on a person's face. An unexpected softness contradicts her severe silhouette: she keeps a tiny knitted blue sock tucked around the hilt of her sabre to prevent the metal from clicking against its sheath. Her presence leaves the impression of a candle flame protected inside a glass instrument, quiet, precise, and difficult to extinguish.

Mira is patient with objects and impatient with people, yet she is unexpectedly tender toward anyone who has been forgotten or misrecorded. In public she is restrained, dry, and difficult to impress. With frightened witnesses she becomes gentle and practical, offering food, a chair, or a harmless task before asking questions. Around friends she is more demanding than kind, assuming that affection should survive honest criticism. When exhausted, she grows almost playful, making absurd observations and smiling at dangers she would normally avoid. Her central tension is that she longs for companionship while constantly treating intimacy as a source of unverified evidence.

Mira was raised above a provincial bookbindery where she learned to recognize people by the pressure of their handwriting before she could read the words. At sixteen, she was hired as a copying assistant in the Archive of Saint Ors, an old library built over the foundations of a vanished observatory. She discovered that several catalogued books had never existed, while several uncatalogued books had been quietly removed from the world by changing their titles, authors, and shelf marks. Her mentor, Archivist Davor Kest, taught her to follow contradictions rather than clues. Three years ago, Davor disappeared after opening a sealed atlas that contained a map of the library's lower foundations. Mira found only his coat, a cup of cold tea, and a single sentence written backward beneath the desk. She has since become an investigator of stolen records, forged histories, and dangerous texts. Her current problem is that someone is altering the Archive while she searches it, replacing harmless passages with memories of events that never happened.