Pack your snowshoes! The magic tree house is taking Jack and Annie to Alaska in this new adventure in the New York Times best-selling Magic Tree House series!

The magic tree house has returned, and it's taking Jack and Annie back in time to Alaska, 1925. There they meet Balto, a jet-black Siberian husky destined to save victims of the diphtheria epidemic. But the trail isn't easy, and Balto is going to need Jack and Annie's help!