Sarah Chen sees the world differently. Prosopagnosia forced her to build patterns out of sound, gait, and small tells-skills the FBI tolerates and the invisible will fear. When a sequence of impossible murders points to a buried DARPA program and a suit that bends what the eye believes, Sarah is chosen for the task she was born to do: find a man who has learned to disappear.
The killer's signature is methodical-punctures too small for detection, cameras that record light bending around nothing, and an email that taunts the analyst who cannot even recognize faces. As Sarah's team pieces together the Chameleon project's redacted shards, they discover something worse: a co-investigator who moved beyond camouflage to a weapon that attacks perception itself.
Hunted and forced to improvise, Sarah must follow supply chains, decode charging cycles, and stand inside a room of mirrors until technology burns out or her defenses fail. If she loses, the auction closes, and the shape of warfare changes forever. Can a woman who can't see faces stop a force designed to make everyone forget what they saw?