The Hardy Boys Secret Files Collection Books 1 - 5 is a set of paperback books that includes the titles "Trouble at the Arcade," "The Missing Mitt," "Mystery Map," "Hopping Mad," and "A Monster of a Mystery." Written by Franklin W. Dixon, the books are part of the Hardy Boys: The Secret Files series. Illustrated by Burroughs and Scott, the books are geared towards ages 9-12 and fall under the genres of action & adventure, mysteries & detective stories, and boys & men. Published by Simon & Schuster Children's Publishing in 2014, the collection is a total of 496 pages long.