He'll save his Comprehend Languages until he finds a bookshop that carries more foreign titles, then; it doesn't last as long when cast from scroll... no, that's the wrong way to think about it, that potentially gives the Conspiracy too much time to slip up if his thoughts slip up.

Message to proprietor:  Hi, I'm shopping by scry today!  Sorry for this weird request, but if you can immediately go over to one of your books and open it to a section with something inside critical of Cheliax, in any way at all however minor, I'll immediately buy that book.

He'll save his Comprehend Languages until he finds a bookshop that carries more foreign titles, then; it doesn't last as long when cast from scroll... no, that's the wrong way to think about it, that potentially gives the Conspiracy too much time to slip up if his thoughts slip up.

Message to proprietor:  Hi, I'm shopping by scry today!  Sorry for this weird request, but if you can immediately go over to one of your books and open it to a section with something inside critical of Cheliax, in any way at all however minor, I'll immediately buy that book.  Bonus points if it's in a language that isn't Taldane.

(Yes, this is also testing whether the proprietor is being mind-controlled in a way that doesn't permit the controller to access native knowledge about their own books.)

He'll save his Comprehend Languages until he finds a bookshop that carries more foreign titles, then; it doesn't last as long when cast from scroll... no, that's the wrong way to think about it, that potentially gives the Conspiracy too much time to catch him if his thoughts slip up.

Message to proprietor:  Hi, I'm shopping by scry today!  Sorry for this weird request, but if you can immediately go over to one of your books and open it to a section with something inside critical of Cheliax, in any way at all however minor, I'll immediately buy that book.  Bonus points if it's in a language that isn't Taldane.

(Yes, this is also testing whether the proprietor is being mind-controlled in a way that doesn't permit the controller to access native knowledge about their own books.)