The very first Space Marine Battles novel, published back in 2010, Steve Parker’s Rynn’s World kicked the series off in style with an action-packed story of Crimson Fists battling a vast ork invasion. Despite the apparent folly of attacking a Space Marine home world, the Arch-Arsonist Snagrod’s unusual tactics surprise the Crimson Fists, resulting in huge numbers of orks landing onto Rynn’s World. When a million-to-one accident sees the Fists’ ancient and treasured fortress-monastery destroyed and the majority of their warriors slain, a determined defence turns into a desperate fight for the survival of the Chapter itself.