The temple of the dark side religous sect was situated in the Holy City of Jedha, a moon, during the High Republic Era. This underground temple, accessible through a side street door, served as the residence of the Brothers. As a defensive measure, vines were present, capable of ensnaring and immobilizing any unwanted individuals. One of the Brothers, Mytion, expressed a desire to depart from the temple and establish a new one, integrated with the other religions in the city. In 382 BBY, Tilson Graf, a member of the Graf family, journeyed to the temple. His purpose was to solicit the Brothers' assistance in assassinating Jedi Masters Silandra Sho and Creighton Sun, along with Jedi Knight Aida Forte.