Quicksand bringing you down? Try this very funny science book now available in Spanish! When Jungle Girl falls into some quicksand and starts slowly sinking, Jungle Boy arrives quickly--and takes the opportunity to tell her how it is formed, what it is made of, and how to get out of it, demonstrating with charts and graphs. Meanwhile, Jungle Girl sinks lower... and lower... But before the book ends, the tables turn and Jungle Girl gets her revenge! This engaging introduction to an unusual phenomenon from the bestselling author-illustrator of Strega Nona includes instructions for making your own quicksand--as well as tips on how to escape it if you're as unlucky as Jungle Girl. Boldly-illustrated nonfiction with a strong sense of humor, this classic picture book is equal parts science lesson and entertainment.