General Jackrabbit and his Robo-Rabbits from Jupiter attempt to take over the world on Ricky Ricotta's birthday.

"From its history to its future, learn all about Jupiter, what it looks like, and how scientists study this huge planet."--

"The My Guide to the Planets series introduces early readers to the planets in our solar system. Each book is told from the planet's perspective, providing a unique and fun approach to science learning. In this book, meet Jupiter and learn how many moons he has. Through simple sentences, emerging readers will learn technical facts and develop word recognition and reading skills. Includes a table of contents, glossary, index, and an author biography"--...

Mr. Kazarian, the school librarian, is actually an extraterrestrial (with a holographic disguise) studying the behavior of human children, and if he wants to continue his research he will have to find a way to convince the four students who have discovered his secret not to expose him--perhaps by helping their assignment on gas giants with a quick trip to Jupiter.