The Beast Must Die

The Imperium has be brought to the edge of extinction by an ork invasion of unprecedented scale and depth. Piecemeal strikes against the invaders prove ineffective - for every ork fleet destroyed, five more appear. The only solution is to find and kill the orks' warlord - the Great Beast. Surely if its leader is killed, the greenskins' empire will fall apart in agony of infighting and confusion. Lord Commander Koorland assembles a mighty army, but when they arrives on the orks home world, the forces of the Imperium discover they have disastrously underestimated the might and ingenuity of their enemy.

Read it because
A primarch, the last Imperial Fist and the biggest Imperial army since the Heresy walk into the ork homeworld… but it's no joke. This is the big one, and drama is guaranteed.