Ahriman : Gates of Ruin

Ahriman, sorcerer lord of the Thousand Sons, seeks the fabled Gates of Ruin, reportedly a safe way out of the Eye of Terror, far from the eyes of the Imperium. But when he finds the Gates of Ruin, he discovers that he has been drawn into a deadly trap. As daemons attack, Ahriman and his followers must draw on all their power and skill if they are to survive.