Sorcerer's Isle

Sorcerer's Isle is an island located on the Stojanow River, with the river splitting around the island. The closest settlement to Sorcerer's Isle is the fortified hamlet of Kabel's Hill. The predominant feature of Sorcerer's Isle is a large silver pyramid that occupies most of the island.

History
The pyramid was created some time around -100 DR and served as a wizard's college, though it was abandoned at some point in time for an unknown reason.[1]

Its next known occupant was a wizard (Magic User) named Yarrash, who used the pyramid to poison the Stojanow River as part of his attempts to create a new race of freshwater sahuagin [2]. Yarrash had never seen a real sahuagin before, but believed with magical augmentation he could change the indigenous lizardmen in the area into sahuagin. He kept several mutated lizardmen as slaves inside the pyramid and used their labor to facilitate the poisoning of the Stojanow River. The Heroes of Phlan put a stop to Yarrash and his experiments in 1340 DR, ending the poisoning of the river in the process.[3]

The pyramid began making trouble again in 1489 DR when a portal to Limbo somehow opened up in the old pump room for the pyramid. Slaadi came through and proceeded to pump chaosstuff through the mechanism, poisoning the river once again but this time with more random and chaotic effects rather than the deadly poisonous effects of the past.

Design
From the exterior the pyramid consists of a simple pyramid design with two entrances entering inside from opposite sides of the pyramid. The top of the pyramid contains pipes that ran from inside and allowed the pumping out of poison or chaosstuff down the side of the pyramid into the surrounding river.[3]

The pyramid is broken into three levels, the bottom two of which consist of a large and complex maze filled with teleportation circles and hidden doors. Numerous monsters have become lost in the pyramid over the years, many of them going insane over the course of their time in the magical labyrinth.[4]

At the top of the pyramid and only accessible through the labyrinth was the pump room and the private chamber's of the wizard Yarash. Several mutated lizardmen also lived on the top floor who were enslaved in order to work the pumps. Yarash's chambers were equipped with a special teleportation circle with a special tool to select where it would take a person. It connected to several private store rooms and to the entrance of the labyrinth.

Novels

 * Pool of Radiance (Novel)

Sourcebooks

 * Ruins of Adventure
 * Grand History of the Realms

Video Games

 * Pool of Radiance (Video Game)

Adventures/Modules

 * Phlan During the Tyranny of the Dragons (Dark Pyramid of the Sorcerer's Isle)