Amazon.com Product Description (ISBN 0679892494, Paperback)

Meet Zenon Kar, a futuristic fifth grader who lives in a space station high above Earth. She's the star of a brand-new chapter book series and a #1-rated Disney Channel movie. Pets aren't allowed on Zenon's space station, so she becomes caught up in a craze for a robotic dog called a Tobo. Tobo dogs talk, fly, and even do homework. Every kid on the space station is getting one, but Zenon's dad buys her a cheap knockoff instead -- a Bobo, which has no ears, no tail, and no vocabulary! But what Bobo lacks in brains, he makes up for in loyalty. And when the Tobo dogs go haywire, Zenon's Bobo dog bravely saves the day!