Vintage 1964 Book – The Three Investigators, Secret of Terror Castle

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Vintage 1964 PB Book – The Three Investigators and the Secret of Terror Castle

• Found At: Garage Sale in Michigan

• Purchased For: $0.50

• Value: Sold for $7 (May, 2011)

• See item listing here.

• A Little History Lesson: The Three Investigators book series was first published as Alfred Hitchcock and the Three Investigators. It was created by Robert Arthur, Jr., who believed using a famous figure such as movie director Hitchcock would attract attention. (Source:

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