num_pages: 160
description: The Hardy Boys go undercover as bicycle messengers in New York when their father is hired to investigate the theft of designs from World-Wide Technologies by a rival firm
language: English
title: Street Spies
titlecomplete: Street Spies (Hardy Boys: Casefiles, #21)
genres: Fiction, Mystery
ratings_count: 131
series: The Hardy Boys Casefiles
publisher: Simon Pulse