Dan Abnett, the Black Library's best-selling author, returns with more tales of Inquisitor Gideon Ravenor and his retinue of lethal operatives. First introduced in Dan's astonishing Eisenhorn trilogy, Ravenor has left his former master and is now investigating the spread of a unholy psychic substance called flects. As his investigation takes him into the higher echelons of the Imperial hierarchy, it becomes clear that this will be his most dangerous assignment yet. With a huge range of novels behind him, Dan once again shows why he is the master of the Warhammer 40,000 universe.