The class goes fossil hunting in Rainbow Rock State Park, where Buster and Arthur the aardvark find a real fossil, which Buster is reluctant to give up. Can Arthur persuade him to return his important discovery, or will it remain hidden for years to come in Buster's bedroom?

When Arthur's third-grade class goes hunting for fossils at Rainbow Rock State Park, his friend Buster actually finds one, and instead of turning it in Buster decides to take it home--but he soon regrets his decision.

When Arthur's third-grade class goes hunting for fossils at Rainbow Rock State Park, his friend Buster actually finds one, and instead of turning it in Buster decides to take it home--but he soon regrets his decision.

"When Arthur's third-grade class goes hunting for fossils at Rainbow Rock State Park, his friend Buster actually finds one. There's just one problem: he wants to keep it. Can Arthur persuade Buster to return the important discovery, or will it stay buried forever in the back of Buster's closet?"--

One of a series of picture-books featuring Arthur the aardvark. His parents are going to have another baby, and Arthur's gang have warned him about the sleepless nights, endless baby-sitting, smelly nappies and gooey baby-talk. The baby might even be like his bossy little sister, D.W.

Although Arthur and Francine aren't speaking to each other, they must find a way to set aside their differences when they are locked in the library after it closes.

Arthur's experience babysitting for the terrible Tibble twins is more challenging than he expected! The feisty little ones almost get the best of the adorable aardvark, but he is finally able to settle them down with an imaginative story. Kids will love listening along as beloved author/illustrator, Marc Brown reads this exciting story!