Rogal Dorn: The Emperor's Crusader

Six decades into the Great Crusade, the Emperor sends four primarchs beyond the Northern Major Warp Storm to claim the Occluda Noctis, hundreds of star systems hidden from the Astronomican and from the Emperor's own sight. Rogal Dorn takes his Imperial Fists straight into that darkness. Cut off and facing an enemy no one has fought before, he has to lean on his strategic mind and sheer will to take the region for the Imperium.