Jack and his sister, Annie, must go to California! They must look at nature! They must save the wilderness! Save it from what, exactly? That's what Jack and Annie must find out when the magic tree house lands in the tallest tree on earth. The nature around them is so grand and peaceful--is it really in danger? Two travelers, two sketchbooks, and one grizzly bear will show Jack and Annie that danger isn't always seen with the eyes. Sometimes it's felt with the heart.
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