George Beard books

The Adventures of Ook and Gluk, Kung-Fu Cavemen from the Future. by George Beard and Harold Hutchins (2010)

Ook and Gluk are mischievous caveboys that get into loads of trouble. Due to the trouble they get themselves in, they are sent to the future. Once there, they befriend a Kung Fu Master who teaches them how to defend themselves. As years pass on by, they become full grown cavemen. Having that said...