To celebrate the fifth anniversary of Black Library's seminal event, we have put together an anthology of stories by some of out most popular authors from the past five years. In the grim darkness of the far future, the noble forces of the Space Marines stand as mankind's last and greatest line of defence against the alien, the mutant and the heretic. But even these transhuman warriors are not wholly immune to the whispered promises of Chaos, and it is a tragic fact that many have turned their backs upon their former Chapter-brothers, over the centuries. Some seek out personal glory, others desire ever greater power, while a dark and twisted few swear themselves to the eternal pursuit of vengeance for some ancient wrong...