num_pages: 178
description: Book 51 of Hardy Boys Mysteries Series.
language: English
title: The Masked Monkey
titlecomplete: The Masked Monkey (Hardy Boys, #51)
genres: Detective, Thriller, Childrens, Crime, Young Adult, Classics, Mystery, Mystery Thriller, Adventure, Fiction
ratings_count: 1425
series: The Hardy Boys, Hardy-guttene
publisher: Grosset and Dunlap