The Nye Dyv

The Lake of the Unknown Depths is said to have once held a number of very magical islands called the Isles of Woe, which apparently sank beneath the waters over a thousand years ago. The Isles are reputed to have been the home of the wizard priest Tzunk, who used the Codex of Infinite Planes to rule an empire. Other sources claim that the archlich Vecna rules the ancient domain from an island in this area. Regardless of these rumors, the Nyr Dyv is a hub of marine traffic for all counties that abut it. Even the far reaches of the Flanaess trade here using the Lake's great tributaries or the two large rivers that drain from it. The lake is also home to mostof the Rhennee, the barge people are said to know the Byr Dyv very well. Piracy is rare on the lake, as the Furyondian marines have taken great pains to arrest independent buccaneers and chase away the predatory craft of Iuz. Strange sea monsters make regular appearances, and most warships have had at least one conflict with such a creature that sought to sink it or steal its crew.