Arthur and the Comet Crisis — Stephen Krensky

Buster is sure he saw a UFO, but no one believes him. When Buster borrows Muffy's telescope and photographs what he sees, the Brain has a simple explanation for every picture. But then Buster discovers a comet heading straight for the earth! Will he be able to convince his friends that they need to listen to him this time?

Presented in chapter-book format, for children who are ready to read on their own, this tale of discovery will surely be a hit among Arthur fans.