Why did dinosaurs suddenly disappear from the Earth millions of years ago? What color were dinosaurs? What is the name of the mysterious, huge animal that is said to be a leftover dinosaur? Read this book to find out! Tales of Mystery and the Unknown is a richly illustrated 7-volume series that shares stories and facts behind numerous mysteries. The text and illustrations combine to help answer children's questions about many of the strange objects, events, and creatures that continue to puzzle us today.