This season focuses on the rise and fall of the illithid lich Darmuth, ending with his defeat and the discovery of the Well-Of-Many-Worlds.
- Meade, Os's close ally, defeats Frederina at the Oracle's Fortress in Fywick and later retires to open the Three Swishes Tavern in Fywick.
- The party learns of a greater illithid threat beyond Darmuth.
- The devastation vermin (giant insectoid colossi) are introduced during early interdimensional travels.