School is back in session, and for the seventh graders of Ravensburg Middle School, that can mean only one thing. Field Trip! For as long as anyone can remember, the seventh graders of Ravensburg have been traveling to the old mining town of Forgotten, West Virginia for a few days of outdoor education. But it appears this old town is hiding more than a few secrets. An as usual, it will be up to The Math Inspectors to try and uncover them. Will Stanley, Charlotte, Gertie, Felix, and Herman solve another baffling mystery? OR this time has their luck finally run out and will Forgotten's secrets be lost forever to history?.
