The Mine Caper (Paperback) (ISBN-13: 9781775361428)

The last thing Dana Redding wants to do this summer is go on vacation. It's bad enough her mom wants to get remarried, but now Dana has to spend two weeks visiting this guy's kids. While exploring the local countryside, Dana, Jack, and Amy stumble upon the secret entrance to an old abandoned coal mine. Racing against time, bad weather, and armed thieves, the three kids must work together to get out of the mine alive.