A githzerai monastery overseen by a 16th-level githzerai monk named Belthomais, the Monastery of Zerth’Ad’lun teaches zerthi - a form of martial arts that emphasizes anticipating an opponent’s next move. The practitioners of zerthi claim to be able to see a moment into the future as a result of their training, but in a secret shrine inside the monastery, the monks meditate over a small pool that grants the same ability.

The monastery is a planar touchstone, granting minor prophetic powers to those who pass its tests.