The ShortWave Mystery Hardy Boys 31 Author:Franklin W. Dixon All boys from 10-14 who like lively adventure stories, packed with mystery and action, will want to read every one of the Hardy Boys stories. Sons of a famous American Detective, the Hardy Boys help solve many thrilling cases after school hours and during vacations, as they follow up the clues they unearth in their quest to bring criminals to j... more »ustice.« less