George and Harold's latest prank backfires in the second book in this #1 New York Times bestselling series by Dav Pilkey, the author and illustrator of Dog Man!

Not so long ago, George and Harold created the greatest superhero in the history of their school - and brought him to life by mistake! He is Captain Underpants,

George and Harold completely wreck the school's Invention Convention and end up in detention. While trying to photocopy their latest Capitain Underpants comic,

For use in schools and libraries only. By mistake George and Harold bring to life the most disgusting, life-threatening monster--the terrible Turbo Toilet 2000.

The first five books of the popular Captain Underpants series are collected here in a boxed set of heroic adventures and dastardly bad guys; includes sheet of 8