The Case of the Flying Phantom — Melinda Metz

Ashley and Mary-Kate are having a terrific time on a family vacation in Washington, D.C. They especially like spending time at the Smithsonian Air and Space Museum. But during their visit, the famous Wright Brothers' plane starts to tremble--and spooky voices float down from the cockpit! Could there be a ghost in the machine? Mary-Kate and Ashley are on the case!