The Psyocculum is a strange device that allows the user to see psychic emanations, lighting up witches with a halo of unclean energies in even the darkest or most occluding conditions. It can dramatically enhance targetting for its user in even the darkest or most occluded conditions, and is a favorite device for the Inquisitors of the Ordo Hereticus.
- Codex: Witch Hunters (3rd Edition), pg. 22
- Gathering Storm - Part One - Fall of Cadia (7th Edition), pg. 133