Foren is Eiselcross's largest island and the site of the ruins of Aeor, making it a magnet for treasure seekers. For that reason, mages of the Cerberus Assembly maintain a fort there called Balenpost, and mercenary explorers of Uthodurn populate the small settlement of Syrinlya. One of the Aeorian artifacts was responsible for transforming a frost giant castle into the Fortress of the Dead Jarl around 635 PD.
Vess DeRogna stated that Aeor's presence has continued to weave unchecked magical oddities and wild magic in the area, such as the perpetually flowing river of lava that bisects the island. Teleportation to the area is disrupted as well. The river arises near the center of the island at the "flow change" and flows both northward and southward from that point. The magical disruptions are the strongest within the ruins of the city of Aeor.
Forty miles inland from Syrinlya is a region called Thin Sheets, named for the wide, thin sheets of ice over frigid water.
