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Book, 2013
Current format, Book, 2013, , All copies in use.
Book, 2013
Current format, Book, 2013, , All copies in use. Offered in 0 more formats
When George and Harold hypnotize their principal into thinking that he is the superhero Captain Underpants, he leads them to the lair of the nefarious Dr. Diaper, where they must defeat his evil robot henchmen.
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