I'm wearing my evil DM grin now.
Shayuri said:
Can any of the rest of us hear this, IC?
Nope. The rest of you are with Hadia's sons Naji and Na'im & the janni Usqual. The chamber with the water-bearer is much deeper into the caves of the caravanserai.
The Persuasion check [MENTION=23]Ancalagon[/MENTION] made was to determine
how much access Hadia would permit to the "water-bearer." I should have mentioned that but was pressed for time when posting; since he just made the Difficulty 13, I determined that would allow him and one other.
Matthan said:
I wouldn't put it past Quickleaf to pull a fast one and just have a pale hemophiliac hanging around. In character though, would any of us even know enough (or anything) about vampires to be suspicious? I know most of us aren't hearing any of this, but Lal is in the middle of it. He's pretty well traveled. Is Lal getting concerned?
Such a suspicious mind

Actually, yeah, that's totally something I would do.
While your PCs can't hear any of this currently, generally I think it's safe to assume you can apply whatever monster knowledge you have as a player that you want to apply. I mean, your PCs
are 11th level. What's great about having a group of experienced players is that you have lots of D&D monster lore to draw from; so the fun becomes trying to guess what I as DM am up to (since I re-flavor and tweak stuff all the time to suit the setting/game) and to find a way to portray your PC's knowing a given piece of information in a way that's convincing/entertaining according to what you envision their past looks like.
Generally, that hyper-vigilant "does my PC know what I know about the monsters" makes sense at lower levels, but I feel comfortable letting go of it at higher levels.