This article is written
from the Real World
point of view
Edward Stratemeyer 002.jpg

This article is a stub. You can help The Hardy Boys Wiki by expanding it.

For the revised edition of this book, see The Secret Warning (revised text).

The Secret Warning is the 17th book in The Hardy Boys series. It was first published in 1938 by Grosset & Dunlap.

Publication history

to be added.

Plot summary

The Hardy Boys have to tackle Gus Kuntz's sinister plans when diving for sunken treasure in the wreck of the Katawa.[2]


This list is incomplete, you can help The Hardy Boys Wiki by expanding it.



to be added.

Businesses and organizations

to be added.


to be added.


to be added.

New authorship theory

For many years it was accepted that the sole author of this volume was Dr. John Button[1][2]. Recently, however, Hardy Boys fan Trevor Thurlow has speculated that this was not the case.[3][4] He believes that writing styles indicate that Leslie McFarlane may have written an early manuscript that was rejected, but then recycled and copied into a new manuscript that also copied and recycled parts of a manuscript written by Dr. John Button. He supports this theory with the fact that Leslie McFarlane mentioned, in his autobiography Ghost of the Hardy Boys, that he remembered working on the book, but couldn't remember any of the details surrounding the creation or the plot of the book.[5] Also, the story that the incarcerated Navy officer tells the Hardy Boys on pages 104-106 is written and structured in a manner that is extremely similar to the way Leslie McFarlane had Amos Grice telling the boys the stories about Mr. Jeffereson's stamps and the chicken thieves that hit Grice's store on Christmas night/Boxing Day morning in The Mystery of Cabin Island (original text).


External links

to be added.

Community content is available under CC-BY-SA unless otherwise noted.