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Audio book description
In The Knight at Dawn, Jack and Annie find peacocks for dinner and boys in skirts when the Magic Tree House transports them back to the Middle Ages for another wild adventure. In this second book in the series, inquisitive, notebook-carrying Jack and his animal-charming younger sister, Annie, find themselves in the middle of an enormous castle. They can hear the beginnings of a feast under way in the Great Hall. But Jack and Annie aren't exactly welcome guests! Surrounded by dangerous dragons, frightening dungeons, and hidden passageways, how will they find their way out?

Audio book description
In Mummies in the Morning, Jack and Annie get another mummy when the Magic Tree House whisks them back to ancient Egypt after reading a book on the same subject. There, they find themselves in a pyramid, face to face with a long dead queen named Hutepi. She needs their help finding her copy of the Book of the Dead for a trip to the underworld. Will Jack and Annie be able to solve the puzzle, or will they end up as mummies themselves?

Audio book description
Where did the tree house come from? Before Jack and Annie can find out, the mysterious tree house whisks them back to the prehistoric past. Now they have to figure out how to get home. Can they do it before dark, or will they become a dinosaur's dinner?

Audio book description
First, hear about fish-shaped reptiles that thrived in the oceans while dinosaurs ruled the land. Then, learn about the evolutionary history of whales, the mammals that conquered the seas. The most famous of all dinosaurs, Tyrannosaurus Rex, gets a fresh look as scientists re-examine fossil evidence for clues as to the tyrannosaur?s actual behavior. Also, learn about some ancient Australian marsupials that were as ferocious as they were bizarre. Then, in "Which Came First, the Feather or the Bird?" hear about the carnivorous bipedal dinosaurs that developed the earliest feathers. Also, "Terror Birds of South America, " huge creatures that were the dominant carnivores on the continent for millions of years, until competitors drove them into extinction. Finally, get an overview of the "Evolution of Life on Earth."…

Audio book description
From the ever-inventive, ingenious mind of Michael Crichton comes the terrifying tale of a "theme" park that even Disney never dreamed of! A shroud of secrecy covers a privately-owned island off the coast of the Dominican Republic where an American bioeng…