Read by the author 2 hrs. 35 mins. 2 cassettes Jack and Annie are back with four more adventures in one audiobook collection. This time, Jack and Annie must race against time to find an ancient library before it's buried in ash, take on a book burning emperor, escape a Viking invasion, and witness the first Olympics in ancient Greece. Volume 4 Magic Tree House #13: Vacation Under the Volcano Magic Tree House #14: Day of the Dragon Magic Tree House #15: Viking Ships at Sunrise Magic Tree House #16: Hour of the Olympics

Publication Year: 2002