Mr. Krupp makes George and Harold do lots of boring chores and jobs for him at school. The boys feel unhappy because they must obey him. They start planning how to stop Mr. Krupp and get the videotape back. At the same time, they are waiting for their 3D Hypno-Ring to arrive in the mail, hoping it will help them. Listen and follow along. Send me a message for your free copy of this book to follow along.