The Brotherhood of the Ninth Door, also known as the Brothers of the Ninth Door, was a secretive dark side religious sect local to the Mid Rim moon Jedha during the High Republic Era. They had the ability to use the Force to make others see them as something other than what they were, and members of the group could be identified by the skull masks they wore. Around 382 BBY, a robed and masked member of the sect was present in the tapbar Enlightenment in Jedha City, and Temple of the Kyber adjunct Keth Cerepath took note of them among the many others in the bar that night. Later, the Brotherhood helped Tilson Graf and the Path of the Open Hand cult incite the Battle of Jedha in the hopes of receiving the money to build themselves their own temple. Members of the Brotherhood dueled and were defeated by Jedi Master Silandra Sho and Cerepath during the battle.