While Tony is at the Buchman Library doing research, a blackout in the building occurs. In the aftermath when the lights come back on, the assistant curator, Stacy McGranahan, notices that a new acquisition, a rare and valuable book, a Machiavelli, has gone missing. Two of the perpetrators are apprehended, but they refuse to talk, including not telling the location of the missing book, which she figures must still be somewhere in the building as no one would have been able to get it past security in the current lock-down. Stacy learns the hard way that the book has indeed made it out of the building - in her bag in a secret compartment - as the mastermind behind the theft is Ralph Turner, her supposed boyfriend who believes he has killed her. Tony however manages to save her. Tony and Stacy have to figure out why Ralph stole this particular book when there are seemingly much more valuable ones in the library, which may lead them to where and to who the book is intended. Tony may have ...