Considering that this happened last Saturday, and today is Thursday, i.e, it has only been five days (more like four, since it's still early morning, local time

Considering that this happened last Saturday, and today is Thursday, i.e, it has only been five days (more like four, since it's still early morning, local time, on Thursday) I find it extremely unlikely that all books have been returned by now — surely someone needs a week to get through a book?