For this Throwback Thursday I recommend: The Tower Treasure by Franklin Dixon.
The robbery of the treasure in the tower proves to be an exciting challenge to Frank and Joe. Frank and Joe attempt to foil a ruthless espionage ring in their effort to sabotage the United States space program.
After highlighting Nancy Drew, it seemed like the right time to highlight the Hardy Boy Mysteries. These classic mysteries were first published in 1987, and featured brothers Frank and Joe as they worked to solve cases.
You can find the original Hardy Boy mysteries, and newer adaptations of these sleuths in the Juvenile Mystery section at J DIXON.