- Main article: Books (Thieves Guild)
Lady in the Cistern: Silver-Claw's Theory is a note found in the Thieves Den concerning the statue found in the center of the den. It appears once the mission Prison Break is completed, at Thieves Guild Rank 8.
- Location: On a wooden box in Thieves Den, near Anbi
- Author: Silver-Claw
- Collection: Hew's Bane Bookshelf
I do not know who the lady in the cistern used to be. But truly, it no longer matters who the statue was.
You see, I believe the statue now represents Zeira. Without her guidance, this strange little family of which I now proudly call myself a part would no longer exist. So for me, the Lady in the Cistern is your guildmaster.