The Shrine of Diligence is a shrine located in the Realm of the Gargoyles and dedicated to the Gargoyle virtue of the same name.
Before the shrine itself can be reached, a secret door within a labyrinth of rooms must be found, which leads to the ladder that goes to the chamber of the shrine itself. The shrine is guarded by horrible Daemons that still grieve for their former master, who now is one with the Shrine of Diligence: Exodus
The Avatar visited the shrine in Ultima VI to learn more about the virtue of Diligence. After that time, the shrine was brought to Terfin, while the chamber itself was destroyed in the collapse of the Underworld. The shrine was found there in Ultima VII in the temple of the Shrines of the Principles.