This is one of the series which I like the most after sherlock holmes one. The good about hardy boys is any age group would like the series. The series is about two teen detectives Frank and Joe hardy who are assisting their father who is the professional detectives Fenton Hardy. There are many dangerous situation which they fall in and every time there is some kind of life threatening situation and finally villains are caught and send to jail.
But I always feel that these two kids are solving the cases and not his father, it’s like the father only gets the case and not fully solving it.
Still this is one of the best detective novels are find for any age group. Read it hope u’ll enjoy it.