In this nature-themed picture book, nonfiction expert Melissa Stewart and illustrator Amy Hevron offer an inviting peek into tree holes and the amazing animals that inhabit them. Imagine this: one day you're walking through the woods and spot a tree hole large enough to slip inside. So you do. And you wonder, what kind of creature lived here?   In this science and nature-themed picture book, nonfiction expert Melissa Stewart and illustrator Amy Hevron offer up an inviting peek into the secret world of tree hole dwellers.   From black bears to tree frogs and bobcats, it's surprising just who you'll find! A main text gives general information about tree holes ("a treehole can be a daytime den") and a secondary text provides more detail. This inviting look at trees, tree holes, and fascinating animals is sure to be a classroom and kid favorite.