HIDDEN REALM

Celestial Plane

Forgotten Realms

The Hidden Realm was the divine realm of @ANNAM ALL-FATHER, the chief deity of the giant pantheon. In the GREAT WHEEL cosmology, it was located somewhere in the OUTLANDS. The exact location of the Hidden Realm within the OUTLANDS was unknown. No maps existed with any information on the realm's whereabouts. It was speculated that the realm was magically cloaked from detection or located in a demiplane connected to the OUTLANDS via a portal. The realm itself contained a large crystal tower atop an enormous mountain. From the tower, @ANNAM ALL-FATHER observed the workings of the multiverse. The tower contained a great orrery, a model of the planes, the stars, and the planets that simulated their movements perfectly and silently.
It was speculated by some sages that the Hidden Realm, in fact, did not exist. Others argued that the realm itself was the master control of the planes.