This fits into the same category as The Magicians series by Lev Grossman, academic fantasy for grown-ups (i.e., The Secret History x Harry Potter). But while The Magicians was filled with angst, this one is populated with characters who are more adult and conniving. But they have no idea what they have gotten into. I found it well-written and engrossing, and am ready to read the next in the series. Only quibble is, there isn't enough about the library!