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The Fourth Floor Twins and the Silver Ghost Express
The Fourth Floor Twins and the Silver Ghost Express Author:David A. Adler It's off to the train station for identical twins Donna and Diane and their fourth floor neighbors, twins Gary and Kevin. The kids are going to say good-bye to their friend Max. While at the busy train station, some suitcases diapper. so, the two sets of twins team up to solve the mystery. But are they on the right track?