Spook in the stacks

"Books tumbling from shelves. Lights flickering off, and then on again. Strange smells. Darting shadows. All the evidence points to a haunting at the once-quiet library. when Mags hears the librarians talking about all the spooky stuff they've experienced, she tells Luna and Scarlet to come quick-the G.H.O.S.T. Squad has a new case! But this ghost isn't like the others they've helped cross over. This one is determined to stick around. Forever."--Back cover.