The Secret of the Old Mill

The Hardy Boys Series

Frank and Joe Hardy investigate a mysterious counterfeiting operation after discovering suspicious activity surrounding an old mill. As the brothers follow a trail of clues, they encounter dangerous criminals, hidden secrets, and unexpected twists that put their detective skills to the test. Determined, the Hardy Boys must outwit their enemies and solve the mystery before the counterfeiters can escape.

First published in 1927, this edition is derived from the original book with a single black & white frontispiece by Walter S. Rodgers. As always, this edition is complete and unabridged.