In the war-torn future of the 41st Millennium, the Inquisition fights a secret war against the darkest enemies of humanity the alien, the heretic and the daemon. When Inquisitor Gideon Ravenor and his band of lethal operatives are drawn into a conspiracy to spread the taint of Chaos across a sector, their investigations take them into the gravest peril through space and even time. Wherever they go, and whatever dangers they face, they will never give up until their mission succeeds.