themselves become detectives when they grew older.
Fenton Hardy was one of the greatest American criminologists, and his sons had inherited much of his ability. From their earliest boyhood it had been their united ambition to be detectives but in this they had been discouraged by their parents, who preferred to see them inclined toward medicine or the bar. However, these professions held little attraction for the lads, and when they eventually had an opportunity to display their ability as amateur detectives they felt that they had scored a point toward realizing their ambition.
In the first volume of this series, "The Hardy Boys: The Tower Treasure," the lads cleared up a mystery centering about a strange mansion on the outskirts of Bayport, recovering a quantity of stolen jewelry and bonds after the police and even Fenton Hardy had been forced to admit themselves baffled. Thereafter, their father had made but mild objections to the pursuit of their hobby and was, indeed, secretly proud of the ability displayed by his sons. Further mysteries were solved by the boys, the stories of which have been recounted in previous volumes of this series, the preceding book, "Hunting for Hidden Gold," relating their adventures in the far West,
