From PathfinderWiki

Thuryan is a large island in the Arcadian Ocean just off the western coast of Cheliax. It is part of an archipelago that also includes the islands of Bog Rock, Shardstone, Warlock Island, and Wolf's Tooth.1 A small, unnamed island just west of Thuryan was once the home of the Hrannis, a family of storm giants who gave up their holdings after Cheliax fell under the diabolic ministrations of House Thrune.2