Laugh out loud with Captain Underpants, from Dav Pilkey,

the creator of Dog Man! 

Captain Underpants returns for a twelfth

adventure in this #1 New York Times bestselling

series.

George and Harold, and their doubles, Yesterday George and Yesterday

Harold, have a good thing going. Two of them go to school,

while the other two hide in the tree house and play video games

all day – then they switch!

But when their malicious gym teacher, Mr. Meaner, creates a method

of mind-control that turns their fellow students into attentive, 

obedient, perfect children, the future of all humanity will

be in their hands!