What would the Inheritor do with an offer of as many diamonds as you can carry and all of the books in all of the worlds.
Proooobably diamonds are more valuable than books so you should carry mostly diamonds and just try to commit the books to memory? But she can't stay here that long, she doesn't have that much spending money. And maybe there are some books in all the universes that are even more valuable than diamonds, at least if you're going to have tons of diamonds anyway. Also she's going to get stopped and robbed. Or possibly attract worse attention than that.
Her eyes pop open. "Do you accept pay in diamonds?" she asks the Bar.