The Hardy Boys, brothers Frank and Joe Hardy, are fictional characters who appear in several mystery series for children and teens. The series revolves around teenagers who are amateur sleuths, solving cases that stumped their adult counterparts.
The Sinister Sign Post (later retitled The Sinister Signpost ) is Volume 15 in the original The Hardy Boys Mysteries stories.
This book was written for the Stratemeyer Syndicate by Leslie McFarlane in 1936. Between 1959 and 1973 the first 38 volumes of this series were systematically revised as part of a project directed by Harriet Adams, Edward Stratemeyer's daughter. The original version of this book was rewritten in 1968 by Tom Mulvey resulting in two different stories with the same title.
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