The Cat in the Hat takes Sally and Dick for a ride through the human body where they visit the right and left sides of the brain, meet the Feletons from far off Fadin (when they stand in the sun you can see through their skin), scuba dive through the blood system, follow food and water through the digestive tract, and a whole lot more!
- Hardcover: 48 pages
- Publisher: Random House Books for Young Readers (August 26, 2003)
- ISBN-13: 978-0375811005