Gideon Ravenor, once Gregor Eisenhorn's pupil, is an Inquisitor whose body was all but destroyed in an attack, leaving him sealed inside a life-support chair and working through the minds and hands of his team. Dan Abnett's Warhammer 40,000 trilogy follows Ravenor and his agents as they pursue the trade in an addictive drug called flects into a far larger conspiracy.