Having spread the Great Crusade from one end to the other of the galaxy, the Emperor suddenly decides to harshly punish the Word Bearers legion for being too slow in bringing new worlds to Compliance and religious worship of it. To the Emperor of Mankind. To make matters even more convincing, he orders the city that was the pride of the Word Bearers to be razed to dust. The humiliation of the legion seriously shook the peace of mind of the primarch Lorgar and directed his spiritual quest to the very edge of the material universe, where the warp seeps into the real world, where the voices of the gods are heard and the truth can be touched. This truth, ugly and painful, will become the cradle of the Great Heresy.