A Horus Heresy novel Having recovered from his grievous injuries, Warmaster Horus leads the triumphant Imperial forces against the rebel world of Isstvan III where Horus’s treachery is finally revealed. READ IT BECAUSEBen Counter brings us this exciting third part of the opening trilogy to The Horus Heresy, setting the stage for these epic tales. THE STORYHaving recovered from his grievous injuries, Warmaster Horus leads the triumphant Imperial forces against the rebel world of Isstvan III. Though the rebels are swiftly crushed, Horus’s treachery is finally revealed when the planet is razed by virus bombs and Space Marines turn on their battle-brothers in the most bitter struggle imaginable. Written by Ben Counter.