description: The Hardy brothers are back for more adventures when they visit Bayport's newest martial arts school and find themselves up against a tough street-fighting gang who are trying to run the place out of the neighbourhood.
language: English
title: In Self-Defense
titlecomplete: In Self-Defense (Hardy Boys: Casefiles, #45)
genres: Young Adult, Mystery, Fiction
ratings_count: 134
series: The Hardy Boys Casefiles
publisher: Simon & Schuster (Trade Division)