Everything you need to understand or teach The Hardy Boys by Franklin W. Dixon.
The Hardy boys are active, inquisitive amateur detectives who become involved in all manner of local intrigue, involving thieves, kidnappers, counterfeiters, and thugs. They are always on a roller-coaster of danger, lurching from one precarious situation to another as they try to outwit criminals and solve mysteries.
Stratemeyer conceived of the series when he noticed how popular adult mystery stories had become in the 1920s. In a letter to Leslie McFarlane, he explained that "the growing boys of America might welcome similar fare." He was usually right in his predictions about what young customers would buy. To date, Hardy Boys books have sold over twenty-six million copies.