The Philadelphia adventure /

In 1876, on the eve of the Centennial Exposition in Philadelphia, twenty-year-old Vesper Holly and her friends clash yet again with the archfiend Dr. Helvitius, whose evil schemes plunge them into danger in the wild Pennsylvania countryside.

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Bibliographic Details
Main Author: Alexander, Lloyd.
Format: Book
Published: New York : Dutton Children's Books, c1990.
Edition:1st ed.

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