Princes of the Apocalypse Wed Night
Sacred Stone Monastery
This “keep” is actually an old stone temple built in a rocky vale at the southern edge of the Sumber Hills. It was recently reborn as the Sacred Stone Monastery, home to reclusive monks dedicated to a mysterious “Way of the Sacred Stone,” which sages across Faerun have never heard of because its merely a cover for the Cult of the Black Earth.
The monastery is the surface stronghold of the earth cult, and it functions as the guarded entrance to the Temple of the Black Earth beneath it. All of the monks are earth cultists who are well aware of the true nature of the monastery.