"Not up here," with the books about medicinal plants (unless different branches of magic was meant literally?), but Abby decides she's gonna be nice about it. Being new is hard. She says, "Gimme a moment," and walks away.

When she comes back, she has a couple options for Hermione: Magic: a Natural Physical Phenomenon seems like a good read, as does Ecix Hancey's Drawing from the Fade, a staple of their collection that looks very dog-eared. A Working of Magic, The Circle of Magi: A History...

She hands them all over.

"If you can't find what you're looking for in one of these, you could always talk to another rifter about it."