The Sabbat Worlds Crusade has reached the fortress-world of Jago, and the Tanith First are given a vital – and dangerous – mission to defend a key pass against the enemy, garrisoned in an ancient mansion, the Hinzerhaus. Strange things are happening there. There are voices on the wind and people are disappearing. With enemy outside and ghosts within, Colonel-Commissar Gaunt and his men must face their fears – for only in death does duty end.