Under the benevolent leadership of the Immortal Emperor the Imperium of Man has stretched out across

 Omnibus edition of all three Ravenor novels - Ravenor, Ravenor Returned and Ravenor Rogue - by Blac

Inquisitor Eisenhorn is one on the most senior members of the Imperial Inquisition. With his warband

There is no way out. The walls have fallen, the gates are breached, and the defenders are slain.