Black Lib A Thousand Sons: All Is Dust

"Thousand Sons" by Graham McNeill. When the ill-fated primarch Magnus foresees the treachery of Warmaster Horus and warns the Emperor with the very powers he was forbidden to use, the Master of Mankind dispatches fellow primarch Leman Russ to attach Prospero itself. A second vision of the future reveals more than the betrayal of Horus and changes the fate of his legion forever. ...