Dan Abnett

The Imperium of Man has many enemies among the stars, but none are reviled so much as the alien. Dangerous races seek to destroy humanity wherever they turn –the brutish orks, the ravening hordes of the tyranid, the unrelenting necrons and the mysterious forces of the tau and the eldar. Across the universe, humanity and their defenders, the Space Marines, seek to eradicate these xenos threats. Yet all they can hope for is another day of survival

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"The Traitor Host of Horus Lupercal tightens its iron grip on the Palace of Terra, and one by one the walls and bastions begin to crumple and collapse. Rogal Dorn, Praetorian of Terra, redoubles his efforts to keep the relentless enemy at bay, but his forces are vastly outnumbered and hopelessly outgunned. Dorn simply cannot defend everything. Any chance of survival now requires sacrifice, but what battles dare he lose so that others can be won? Is...

Thor discovers the hidden headquarters of the High Evolutionary and Diablo and attempts to break up the party.

It is the 31st millennium. Under the benevolent leadership of the Immortal Emperor, the Imperium of Man has stretched out across the galaxy. It is a golden age of discovery and conquest. But now, on the eve of victory, the Emperor leaves the front lines, entrusting the great crusade to his favourite son, Horus. Promoted to Warmaster, can the idealistic Horus carry out the Emperor's grand plan, or will this promotion sow the seeds of heresy amongst

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