Colorful, humorous sci-fi (heavy on the fi) for the chapter book set. Ricky Ricotta is a mouse and his best friend is a mighty robot. In this episode, Ricky is visiting the museum for his birthday outing (Ricky's Robot flew the family there, of course) when they realize the heads are missing from some of the dinosaur skeletons. Where have the heads gone? Why is Jupiter orange? What does evil plan has General Jackrabbit (from Jupiter) got in mind for getting rid of Ricky's Robot? Read all about it with comic book panels, superhero action, and Flip-O-Rama. I loved these books when they were originally in black & white. The new color versions are out of this world.