The Secret Warning

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The Secret Warning
Author Franklin W. Dixon
Language English
Series The Hardy Boys
Genre(s) Children's literature/Young adult literature
Publisher Grosset & Dunlap
Released June 1, 1938
Pages 192
ISBN ISBN 0-448-08917-3
Preceded by A Figure in Hiding
Followed by The Twisted Claw

The Secret Warning is Volume 17 in the original Hardy Boys book series published by Grosset & Dunlap.

The owner of a million-dollar gold pharaoh's head claims it was aboard a freighter that sunk off Whalebone Island but there are suspicions that he is trying to defraud the shipping line's insurance company. The Hardy Boys help their famous father investigate.