The Spy's SecretBook - 2016
In their second trip through the enchanted library, Cleo and Evan find themselves in a spy story, where they must stop a traitor named Viper--and they find themselves working with the mysterious replacement librarian, Ms. Crowley.
Publisher: New York : Scholastic Press, 
Branch Call Number: LUPER
Characteristics: 99 pages : illustrations ; 22 cm
Alternative Title: Spy's secret