Leviathan Black Library

The fortress world of Regium has a proud history, enduring when others have fallen to ruin and damnation, standing defiant in defense of the Imperium of Man. However, it is now shaken by parasitic plagues, and its citizens are haunted by dreams of horrific monsters feasting upon their flesh and marrow.

Lieutenant Castamon of the Ultramarines recognizes these signs as an impending Tyranid invasion. Rallying his warriors, he launches a strike force to slaughter the xenos in the outer system before they can reach Regium. But this new tendril of Hive Fleet Leviathan proves unpredictable and deadly. Castamon and the First Company must harness all their skill, might, and zeal, or face utter annihilation.

Written by Darius Hinks, this gripping tale delves into the desperate struggle of the Imperium against a threat unlike any other in the galaxy. The fate of Regium hangs in the balance, and the battle-hardened warriors must fight for survival against the relentless Tyranids.