Warhammer 40k - Apocalypse Short Story - Cold Blood by David Guymer

A deadly threat lurks above the prison moon of Ixus IX... But what dwells on the surface of the airless planetoid may be deadlier still. As the Bloodlords Chaos Space Marines fall upon Ixus, intent upon slaughtering the prison inmates to fuel the hideous daemonic power of a Lord of Skulls and bring glory to the Blood God, they find a very different foe, one with no flesh to rend or blood to spill...