Grey Knights Battle-Brothers are fearsome warriors trained for a single deadly purpose: the eradication of daemons and other Warp-spawn. Unlike other Astartes, a Grey Knight has been completely removed from normal life and has had his entire former personality and identity washed away by a mind-wipe, years of psychological conditioning and genetic enhancement using the unusually pure gene-seed of the Grey Knights which has been engineered from the sacred genome of the Emperor of Mankind Himself. A Grey Knight exists to vanquish his foes and only ever leaves the towering walls of the Chapter's fortress-monastery on Titan to answer the call to arms. Of course, Grey Knights Battle-Brothers are more than mere killing machines; they are also cunning and intelligent, schooled in millennia of lor