Readers on Amazon consider it readable at 3 - 7 Grade Level.
A popular method used by schools to measure a student reader’s ability is Lexile level or a Lexile Measure. The Lexile Level of Hardy Boys 29: The Secret of the Lost Tunnel is 730L .
Readers of age 8 - 12 years will enjoy Hardy Boys 29: The Secret of the Lost Tunnel .
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. Read more