- Main article: Books (Thieves Guild)
- Location: Thieves Den in Abah's Landing, Hew's Bane – Available after completing the quest "The Long Game."
- Author: Thrag
- Collection: Hew's Bane Bookshelf
The lady in the cistern is clearly Nocturnal. Take a look at the statue—the face somewhat obscured, cloaked in an all-concealing robe, and hidden in a cistern that was once bricked off behind another cistern. Who hides water? Nocturnal cultists, that's who.
Not that I was ever in a Nocturnal cult.