SCENE DARKENED
CHEMILUMINESCENCE ACTIVE
EVIDENCE
EMITS LIGHT.
Kill every light, darken the windows, spray the reagent. For thirty seconds the iron in hidden traces blooms a cold cyan-green out of total black — light generated, never reflected. The darkness is the canvas; the glow is the evidence.
REACTION CATALYTIC
λ 425nm
DECAY ~30s
MONOSPACE READOUT