Magic Tree House Boxed Set, Books 13-16: Vacation Under the Volcano, Day of the Dragon King, Viking Ships at Sunrise, and Hour of the Olympics

MORGAN, THE MAGICAL librarian of Camelot, sends Jack and Annie to find lost stories in the ancient worlds of Roman Pompeii, imperial China, Dark Age Ireland, and classical Greece. Will the books help them in their darkest hours? This boxed set includes four exciting Magic Tree House adventures: #13: Vacation Under the Volcano, #14: Day of the Dragon King, #15: Viking Ships at Sunrise, and #16: Hour of the Olympics, as well as a Magic Tree House poster.