Hive Fleet Kraken and Behemoth have been defeated, but the constant evolution of the Tyranid Hive mind has not ceased. It has returned in the form of Hive Fleet Leviathan, the biggest Hive Fleet in history, all who stand in it’s way will be destroyed, their DNA stripped to build more of the endless stream of Tyranid creatures; the future of the Imperium will hang by a thread. This codex contains complete background for all the Tyranid hive Fleets and full details of the new and emerging threat. With reams of additional details and full rules to field this returning threat on the tabletop it a must for all Warhammer 40k gamers.

From the Games Workshop website, which can be found at www.games-workshop.com