Oodlethunks

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 when left at home all day, so the children start Camp Woggle where all the local pets can amuse themselves during the day--but Mauro's pet T-Rex is a problem because he has a tendency want to eat the other campers.

Now that her dinosaur egg has hatched, Oona is delighted and can't wait to show Stacy the stegosaurus off, but not everyone in West Woggle is prepared for the big bundle of joy. Soon, however, Stacy proves that she can defend them from prehistoric dangers and earns a place in their hearts.

Oona finds a giant egg and brings it back to West Woggle to care for it, and see what hatches--but others in the cave want to claim her egg, particularly the nasty kid Bruce Brute, and when the baby stegosaurus hatches it will have tochoose who it wants to live with.