Investigators: Investigators / Take the Plunge / Off the Hook (Hardcover)

The InvestiGators are on the case...and in a slipcase! This confidential box contains the first three adventures of the sewer-loving secret agents, Mango and Brash plus an exclusive poster!

Uncover the mysteries behind why this New York Times-bestselling graphic novel series from John Patrick Green is both highly classified and hi-larious!