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Edward Stratemeyer 002
The Treasure at Dolphin Bay
House name Franklin W. Dixon
Publication information
Publisher Minstrel Books[1]
Producer Mega-Books of New York[1]
Publication date December 1994[1]
Media type Paperback
ISBN ISBN 0671872133
Series The Hardy Boys
Preceded by Day of the Dinosaur
Followed by Sidetracked to Danger


The Treasure at Dolphin Bay is the 129th book in The Hardy Boys series. It was first published in December 1994 by Minstrel Books (an imprint of Simon & Schuster).

Plot summary

Frank and Joe are in Hawaii at a dolphin research center, where they discover that one of the dolphins has suffered a suspicious injury and one of the researchers has vanished.


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  1. 1.0 1.1 1.2 The Hardy Boys & Nancy Drew Archive

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