Zalena reluctantly allows Dunmire to help her over to the map. She looks at it for a bit and points to the room in the middle with the Bhaalite Obelisk that no one has seen (added to the map by Zander, who has seen it). "That room has the scrying pool. Yes, there is probably someone spying on us right now, unless they are too busy fighting amongst themselves."
She then points to the unmapped general "other vaults" area, "None of us have been in this area because we are told to stay out of it, and it's guarded and warded, but that's where his Treasure Vault is, where these Idols were supposed to be kept. Only Silakul, Ourdell, and the Stonefaces have gone in there, as far as I know."