Typhon

From publisher blurb: Typhon is a complete gazatteer of an archipelago surrounded not by seas but by a perpetual hurricane. Ships plying their trade between the islands suspended in the fast flowing currents by cavorite and their stonesingers whisper to the stone. Typhon contains detailed descriptions of key islands and locations, extensive notes and lore Flying ships new spells, gods and monsters a complete adventure set in the wind swept skies.