After seven years of bitter war, the end has come at last for the conflict known infamously as the Horus Heresy. Terra now lies within the Warmaster’s sights, the Throneworld and the seat of his father’s rule. Horus’ desire is nothing less than the death of the Emperor of Mankind and the utter subjugation of the Imperium. He has become the ascendant vessel of Chaos and amassed a terrible army with which to enact his will and vengeance. But the way to the Throne will be hard as the primarch Rogal Dorn, the Praetorian and protector of Terra, marshals the defences.

After seven long years of conflict, the Horus Heresy nears its end. But now, as the Warmaster Horus marches on Terra to rip his father from the Throne, the seat of the arch-traitor’s power lies empty. Cthonia, a world once dominated by brutal murder-gangs, is occupied by the Emperor’s praetorians—the indomitable Imperial Fists. For the Sons of Horus, this outrage demands a reckoning.

Horus is dead. Terra lies in ruins. Amid the rubble of the Palace, shell-shocked survivors emerge into the light of an uncertain dawn. New powers are present now, ones that have travelled the length of the galaxy to bring salvation to the Imperium, though they are as readily cast as usurpers as redeemers. The survivors of the Traitors’ Grand Armada, now scattered and desperate to escape vengeance, are riven with doubt and dissension, and their gods too are silent. Amid all the grief and confusion, some hopeful souls believe the war to be over and an era of renewal just ahead.

The Shattered Legions crew of the Sisypheum, broken and at the end of their endurance, find themselves divided - torn between following their resurrected captain on a suicidal mission or obeying orders to return to Terra and rejoin their Legion brothers. Following a series of garbled messages intercepted by the Kryptos, the divided warriors descend to the shattered surface of Luna. Here, their bonds of loyalty, duty, and their devotion to one another will be tested as ancient horrors of the earliest days of gene-manipulation are unleashed, and a long-buried secret is revealed.

In Chris Wraight’s Homebound, Ilya Ravallion must choose between the decimated White Scars and living out what remains of her life in peace. An embattled Ahzek Ahriman must race against time to learn what he can of the warp before its gates close to him forever in Ex Libris by John French. Featuring tales from Dan Abnett, Aaron Dembski-Bowden, Guy Haley and many more, this anthology follows mighty Custodians, scheming sorcerers, and the lowly footsoldiers of the Imperial Army as all negotiate the devastating aftermath of Humanity's greatest reckoning.