The Masked Monkey
1972 novel by Franklin W. Dixon

The Masked Monkey is the fifty-first volume in the original The Hardy Boys series of mystery books for children and teens published by Grosset & Dunlap.
This book was written for the Stratemeyer Syndicate by Vincent Buranelli in 1972.
Plot summary
The Hardy brothers' search for the missing son of a wealthy industrialist leads them to Brazil and great danger. Chet's hobby at the time is retrieving golf balls from the bottom of ponds at the golf courses around the Bayport area. This yields important clues that help the Hardys round up a gang of criminals who help other criminals change their identity.
Characters include Joe Hardy, Frank Hardy, Fenton Hardy, Laura Hardy, Aunt Gertrude, Chester Morton, J.G Retson, Phil, Tony, Joachim San Marten, Gus McCormick, Mr Jackson, Mrs Martha Jackson, Harris, Harry Grimsel, Sam Radley, Belkin, and Moreno.
The story takes place in Granite City, Bayport, New York, Belém, and Manaus.
Begin with the source’s own compact description: “The Masked Monkey” is 1972 novel by Franklin W. Dixon. The dossier treats that line as a proposition to test through Masked, Monkey and novel, not as a finished interpretation.
Why this record matters
The phrase “1972 novel by Franklin W. Dixon” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.
Attribution, date and provenance are strongest when supported by the original work, a catalogue record and documented transmission. The source revision retrieved here is dated May 17, 2026. The linked authority identifier is Q7750527. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1972.
Rights, attribution and provenance may remain disputed even when a general reference summary presents a stable account. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
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Questions for further research
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This entry incorporates text from “The Masked Monkey” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.