They hunt without a lamp. They find you in unlit rooms.

The Archon colony's own sensory repertoire is grafted onto host trigeminal and cochlear pathways. High-frequency acoustic return — clicks, breath, cloth against cloth, the wet shift of a pulse in a neck — is resolved at ranges and in clutter that baseline human hearing treats as noise. Thermal mapping from the facial field fills the gaps vision loses when porphyric photophobia keeps the host out of light.

This is not a supernatural 'sense of prey'. It is an occupying nervous system using the skull as a chassis for instruments the chassis did not evolve. The dark is not their element by poetry. It is the band in which those instruments out-resolve ours.