Athar

The Athar are a group in Sigil who vocally oppose the gods and all worship of beings as deities. They have an extensive library in the Shattered Temple.

Athar priests and clerics derive their power from what they refer to as the "Great Unknown." They believe this force is the true power behind everything in the universe.

The Athar maintain a library in the Shattered Temple, which was once a temple of the dead god Aoskar. The library has been closed since the invasion of the Grand Army of Revolt, but has recently re-opened a few hours a day since the front lines have moved away from it.