The Rain Disciples are a cult worshipping an ancient nereid named Lorelia. They also safeguard the Water Stone, an artifact that grants the nereid immortality. The reserve of books found in the ruins where they are found has attracted the attention of Hermaeus Mora. He thus sent a cult of his, the Primeval Seekers, to kill the nereid and gain access to the library of lore in his name.
- Mistress of the Lake: Prevent forbidden knowledge from falling into the wrong hands.
- Sunken Knowledge: Help the Primeval Seekers overcome the nereid and her disciples.
- The Water Stone: Help the Rain Disciples overcome the dremora and her seekers.