Compare Hardy Boys 01: The Tower Treasure by Franklin W. Dixon, Paper over Board | Indigo Chapters

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 to make an astonishing discovery that clears up the mystery and clears the name of a friend’s father. | Hardy Boys 01: The Tower Treasure by Franklin W. Dixon, Paper over Board | Indigo Chapters