Product Description The #1 bestselling chapter book series of all time celebrates 25 years with new covers and a new, easy-to-use numbering system! No girls allowed at the Olympic Games! That's the rule when the Magic Tree House whisks Jack and Annie back to ancient Greece. But when Annie tells jack to go to the games without her, he knows she's up to something. Will Annie find a way to see the games? Or will she get herself—and Jack—into Olympic-size trouble? Find out in Hour of the Olympics. Did you know that there’s a Magic Tree House book for every kid? Magic Tree House: Adventures with Jack and Annie, perfect for readers who are just beginning chapter books Merlin Missions: More challenging adventures for the experienced reader Super Edition: A longer and more dangerous adventure Fact Trackers: Nonfiction companions to your favorite Magic Tree House adventures From the Inside Flap ie are off on another adventure! This time they are sent to ancient Greece, where a very important event is taking place. Join them as they race against time and witness the very first Olympic games! From the Back Cover Jack and Annie are off on another adventure! This time they are sent to ancient Greece, where a very important event is taking place. Join them as they race against time and witness the very first Olympic games! About the Author MARY POPE OSBORNE is the author of the New York Times number one bestselling Magic Tree House series. She and her husband, writer Will Osborne (author of Magic Tree House: The Musical), live in northwestern Connecticut with their three dogs. Ms. Osborne is also the coauthor of the companion Magic Tree House Fact Trackers series with Will, and with her sister, Natalie Pope Boyce. SAL MURDOCCA has illustrated more than 200 children's trade and text books. He is also a librettist for children's opera, a video artist, an avid runner, hiker, and bicyclist, and a teacher of children's illustration at the Parsons School of Design. Sal lives and works in New York with his wife, Nancy.