A Horus Heresy Novel
The Warmaster’s treachery is no longer hidden—but the scale of his betrayal is still unimaginable. As the mightiest force of loyalist Space Marines ever assembled makes war upon Horus, they march not toward victory… but into a nightmare.
READ IT BECAUSE
This novel delves deeper than ever before into one of the most devastating battles of the Horus Heresy—the infamous Dropsite Massacre. You may think you know what happened on Isstvan V, but the truth is darker, bloodier, and more tragic than you imagined.
THE STORY
The Warmaster Horus has turned against the Emperor, initiating his rebellion by purging the ranks of the Legions—his own and those of his brothers. What was meant to be a silent betrayal has been exposed, and the Emperor’s agents respond. Rogal Dorn and Malcador the Sigillite assemble an overwhelming force of loyalist Primarchs and Space Marines to crush the traitors before open war can ignite.
But Horus is prepared. The loyalists do not know that they march into a trap—a betrayal so deep it will shatter the Imperium’s dreams forever. The slaughter that awaits on Isstvan V will mark the end of the Great Crusade and the beginning of a grim new age. What was intended as justice will become a massacre… and those who survive will do so in the shadow of a broken empire.
Written by John French
