The Buried Dagger

In the thrilling conclusion of the Horus Heresy series, "Book 54" follows the Death Guard as they embark on the final battle, only to confront a dire threat from Nurgle. Led by Mortarion, the once-unstoppable Legion faces an agonizing descent into chaos as a plague ravages their ranks. As they attempt to navigate a treacherous path towards the Siege of Terra, Mortarion must make a grim pact to save his sons. Meanwhile, Malcador the Sigillite uncovers a sinister plot against Holy Terra, driving him to leverage all his strategic skills to avert insurrection.