A Horus Heresy novel

Unaware of the wider Heresy and following the Warmaster’s increasingly cryptic orders, Roboute Guilliman returns to Ultramar to muster his Legion for war against the orks massing in the Veridian system.

READ IT BECAUSE
It's the beginning of one of the Horus Heresy's most infamous and epic battles. Dan Abnett's story grabs you by the shoulders and throws you into the midst of the Betrayal at Calth. The moment when the build-up ends and the battle begins is breathtaking and brutal and the rest of the novel doesn't let up.