The #1 bestselling chapter book series of all time celebrates 25 years with new covers and a new, easy-to-use numbering system!
Beware of avalanches! When the magic tree house whisks Jack and Annie back in time to the highest pass in the Swiss Alps, they discover an ancient monastery filled with monks and Saint Bernard dogs. Annie can't resist offering to train a wild young dog named Barry, but he is quite the handful! Before the night...
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