Readers on Amazon consider it readable at 4 - 6 Grade Level.
Readers of age 9 - 12 years will enjoy Hardy Boys 61: The Pentagon Spy.
First valuable antique weather vanes are stolen in Pennsylvania Dutch Country and Frank and Joe are hired to catch the thieves. Meanwhile, their father is asked to find a missing Navy employee and a top-secret government document. What is the connection between the missing weather vanes and the Pentagon spy? The final chapters of this thrilling mystery uncover a stunning revelation! Read more