Illustrations and rhyming text reveal the Mighty Underpants War as the true reason dinosaurs are extinct.

"In a prehistoric era, Tib, a boy who is made fun of for his birthmark and his clumsiness, makes friends with Tumtum, a big, playful red dinosaur

Oona finds a giant egg and brings it back to West Wog to care for it, and see what hatches--but others in the cave want to claim her egg, particu

With school out Oona and her brother Bonk are busy helping their father gather food, but Oona's pet Stegosaurus is something of a cave wrecker wh

"Now that Oona's dino-baby has hatched from its egg, things have gotten even wackier! Stacy the enormous stegosaurus, can't wait to explore her n

Caveboy Tek is obsessed with his electronic devices and ignores the world around him, until his family and friends hatch a plan to get him to unp

"A young caveman named Dave must complete a dangerous rite of passage with his peers"--