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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| Format: | Book |
| Language: | English |
| Published: |
New York :
Dell,
1992.
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| Subjects: |
| Summary: | 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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| Item Description: | "A Yearling book." |
| Physical Description: | 150 pages : map ; 20 cm. |
| ISBN: | 0440406056 (pbk.) : |