Ten years ago an ancient criminal organization known as The Forty stole the oldest known copy of The Arabian Nights by Scheherazade. Flynn Carsen, the last of the Librarians, feared they would steal Aladdin's fabled lamp in order to unleash the trapped djinn. Now a new team, led by their Guardian Eve Baird, investigate a man with improbable luck. Has the lost lamp emerged in Las Vegas?
Baird and her team of Librarians suspect that the magic of Mother Goose is again loose in the world, and with Fynn Carson AWOL once again, it is up to Cassandra, Ezekiel, and Stone to track down the missing spellbook before the true power of the rhymes can be unleashed.