Description
When Mary-Kate and Ashley visit the Museum of Early Air Travel in Washington D.C., they are told that one of the planes in the museum is haunted and that leads them to one of their scariest cases yet.
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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!
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