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An area of Thestra comprising the zones Thelaseen and Ruins of Vol Tuniel. Its ominous sounding name implies it is a dangerous swampland.
The Marsh of Peril was created when Zoth Uluus failed to protect this former forest from the Cataclysm, instead flooding it with disease and decay.
"When the great deluge of Zoth Uluus poured crashing onto this forest, Zoth's foul tendrils sank into the loamy soils. Those beings who were not drowned became infused with his blight."
- --Elrena Faermil, Recondite Threshold