Cult of the Black Sun

The Cult of the Black Sun was one of many cults created by Faction Paradox, to which they revealed "all the nastiest secrets of the Time Lords". Others included the Order of the Rectangle and the Luminus. (PROSE: Interference - Book One) Notably, there existed a time-active Order of the Black Sun, which had a complex relationship with the Time Lords. (COMIC: 4-D War, Black Sun Rising, The Final Chapter)