The inscrutable and knowledgeable Cephalyx lurk below western Immoren capturing humans and transforming them into mindless drudges with machinery, drugs, and horrible surgery. Cephalyx exert terrifying control over the minds of others even before enslaving them. The Cephalyx have concluded some unholy alliance with Lord Toruk, and now the mind slavers' drudges march to war alongside Cryxian thralls and helljacks.