Shipping in an assistant librarian from Manehattan to run the Canterlot Archive is an unorthodox move to be sure, but Page Turner, fresh off the train, thinks that maybe it's just a sign that she's moving up in the world. Page is crushed when her duties in charge of the prestigious library turns out to be an endless parade of busywork.

But soon Page finds things are not quite as boring as she thought. She receives odd requests for the rarest spell books, and royal visits almost daily. Just when things seem to be looking up Page finds herself plagued by sleepless night, strange noises seeping from unseen corners, and vivid, frightening dreams.

All alone on her first time away from home, Page slowly puts together the pieces of a frightening truth:

Something is terribly wrong in Canterlot...