The dramatically-named Isle of Terror lies in the middle of Lake Encarthan in central Avistan. It was the site of the final battle between the wizard-king Tar-Baphon and the god Aroden in 896 AR. The necromancer had created a magical trap there for the Last Azlanti, located in an immense shaft known as the Well of Sorrows within a dungeon named the Wizard-King's Pit. Even though Tar-Baphon was eventually defeated, the Well and the dungeon remain, still waiting for the trap to be sprung.