Frank and Joe are called upon to find a wealthy industrialist's son who has mysteriously disappeared. The only clue in the case leads the two young detectives to South America, where the intrigues of evil adversaries almost cost them their lives. Only through their courage and perseverance do the Hardys solve one of the toughest cases they have ever tackled.

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Book details

• Format Hardcover
• Pages192 pages
• LanguageEnglish
• ISBN100448089513
• ISBN139780448089515