"When I'm faced with a Pilkey fan looking to branch out, this graphic novel is the first book I reach for... If eight books aren't enough, the spinoff series, Agents of S.U.I.T., continues the fun." ―The New York TimesWith more than four million copies in print, #1 New York Times-bestselling author John Patrick Green's goofy graphic novel series is a colossal comics hit! Join super spy alligator duo MANGO and BRASH as they surf the sewers and fight the forces of evil. 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!