Some time after the original 58 stories were written, the
series was resumed, and a spinoff series,
The Hardy Boys Casefiles, was also begun. Now there are well over 200 Hardy Boys books.
Basically, this is some of the best fiction reading for boys there is. It's action-packed, and exposes the young reader to many hobbies and occupations. It's about the thrilling adventures of Frank and Joe Hardy, sons of detective Fenton Hardy.