Misdrection, the favored tool of all in the underworld. It's a very simple plan, but a very reasonable one. Go in, do a preliminary scout of the area, try to pinpoint a few things to take, then keep the monks distracted as one of them grab the books. Or come back at a later time, grab some books, then leave before anyone is the wiser.

Ginia flips her mask and hood back up and nods in agreement at the idea, smiling herself.

I think this could be an agreeable arrangement.