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by Franklin W. DixonPaperback details (United Kingdom). details (USA). details (Germany). details (Canada). ISBN: 978-0-00-690814-2 ISBN-10: 0-00-690814-4 Armada · 1980 |
| See also: | ||
| 1994 | Paperback | The Haunted Fort (Two-in-ones) |
| 1964 | Hardcover | The Haunted Fort (Hardy Boys, Book 44) |