__WIKIA_BANNER__ The Hardy Boys Detective Handbook is a guide book to methods for solving mysteries, and was the first ever Hardy Boys spin-off published. It was first published in 1959 by Grosset & Dunlap, and the revised edition was published 12 years later, in 1972.
__WIKIA_BANNER__ The Hardy Boys Detective Handbook is a guide book to methods for solving mysteries, and was the first ever Hardy Boys spin-off published. It was first published in 1959 by Grosset & Dunlap, and the revised edition was published 12 years later, in 1972.
