Navigator: Members of the Navis Nobilite or "Navigator Households" have a strange yet useful mutation that is tollerated by the Inquisition. All of their members have a dark third eye in the center of their forehead with which they can see the patterns of the Immaterium. This Warp Eye lets them navigate ships on long warp jumps where normal humans would simply drift and hope. The Navigators are leased out by their families to numerous organisations, including the Imperial Guard and other Imperial bodies.
Source: Unknown by unknown
Submitter: IBBoard
Hive World Terra