A story about appreciating and preserving the environment in your own backyard. Doug thought he knew everything about his best friend, Harry . . . until he discovers that Harry has a secret hideout in the woods just outside of South School.Unfortunately, Harry can't keep his hideout a secret much longer, because the land is going to be sold and turned into a big apartment building--unless he and the rest of the kids in Room 3B can save it. Harry has...