The Adventures of Ook and Gluk

The Adventures of Ook and Gluk: Kung-Fu Cavemen from the Future
Book cover
AuthorDav Pilkey ("credited" as George Beard)
IllustratorDav Pilkey ("credited" as Harold Hutchins)
LanguageEnglish
SeriesCaptain Underpants series
GenreChildren's novel
PublisherBlue Sky (US),
Scholastic (US)
Publication date
August 10, 2010
Publication placeUnited States
Media typePrint (Hardcover, Paperback)
Pages176
ISBN978-0-545-17530-2

The Adventures of Ook and Gluk: Kung-Fu Cavemen from the Future is a graphic novel written by Dav Pilkey, the second spin-off of the Captain Underpants series. The book is credited to Captain Underpants characters "George Beard" as the author and "Harold Hutchins" as the illustrator.

The plot of the book involves George and Harold, the lead characters from Pilkey's Captain Underpants series, complaining that scientists do not know everything, so they make a comic book about science facts.

In March 2021, Pilkey and the publisher announced that the book would be removed from the market in response to a petition claiming it perpetuated racist stereotypes.