The Secret of the Lost Tunnel (Hardy Boys, Book 29)

Difficult assignments are nothing new to the Hardy boys and this one that takes them to the Deep South is particularly challenging. Their mission: to vindicate a long-dead Confederate general, disgraced during the Civil War because he was accused of stealing hidden gold belonging to a bank.  Skillfully avoiding booby traps and flying bullets, the boys persevere in their perilous quest. The arduous search is full of surprises that will thrill all fans of the Hardy boys.