The Dark Mystics also known as Emperor's Mystics were seven powerful Sith Lords who served the Lord Emperor for over a thousand years as his prophets and generals and are head of the Pyramid of Knowledge. They are infamous and feared through out the empire, even the Shadow Council. Their knowledge of Sith magic and alchemy is beyond anyone in the galaxy except the emperor for they have spent centuries in secret studying sith history, they also very well gifted with far sight and shared their wisdom with their Emperor. However, the Emperor acknowledged their power as a potential threat and Dark Father learned that the Emperor planned to slaughter him and the other mystics. Before the Emperor could carry out his plans, the mystics fled imperial space and used their combined powers to block the Emperor's mental influence from finding them.