Grownups will remember Frank and Joe Hardy and their ability to solve even the most baffling of mysteries. The first book was published in 1927, and over the ye

A dying criminal confesses that his loot has been stored "in the tower." Both towers of the looted mansion are searched in vain. It remains for the Hardy boys t

Brothers Frank and Joe Hardy investigate the murmurs of a dying man who claims to have “secreted” his loot in the dilapidated towers of a mansion. Readers o