Dark Brotherhood

The Dark Brotherhood is an unholy cult that coincides with the Demon Watcher, Diablia. They are a demi-religion that praise Diablia and wish for him to be the dominant watcher of Shadowsong. In doing so, they pose large threats to both the safety and the lives of the people of Shadowsong and are generally of high strength. The total size of the Dark Brotherhood is unknown, and the theory behind who the true leader of the Brotherhood is keeps seeming to shift and change throughout the saga.

Orion, during the second game, defeats who is presumed to be the highest leader of the cult, though in the third game, the Guild of Jesters suggests that the real leader of the order is still alive. In the first game, Shill defeats Sanguine, and at the end of this it is much assumed he is the leader, as it is his heart that opens the final door to Diablia's tomb. The Dark Brotherhood therefore are the collective main antagonists throughout the saga, and is battled quintessentially by all three main protagonists.