The epic saga of Ragnar Blackmane continues with this explosive tale set on the holy planet of Terra, where the ancient navigator house of Belisarius has long been allied with the mighty Space Wolves. In return for the means to navigate the treacherous warp, the Space Wolves provide an honour guard for the Patriarch of the house. But as Ragnar takes up this assignment, he uncovers a plot that reaches into the very depths of the Imperium and perhaps even to the God-Emperor himself!

Set deep in the tunnels beneath the great city of Nuln, a dark evil has been unveiled. The foul skaven ratmen will stop at nothing to bring chaos to the world above and fulfill the prophecies of their dark god. Having enlisted as sewer–jacks in the vain hope of keeping a low profile, Gotrek and Felix find themselves thrust into the thick of the action as they battle to foil the skaven’s dark schemes.