About the book: 2013 / Deep within the network of arcologies of Calth, a war raged for many years. Aeonid Thele, honorary sergeant of the Ultramarines, finds himself in trouble once again - confronted by the daemonic forces of the Word Bearers, he has no choice but to return back to the devastated surface under the light of a deadly star that has already destroyed all life on this world. Together with a lone Imperial Army soldier, he must face the possessed Dark Apostle Kurt Sedd and his squad in the captured XIII Legion stronghold..