SECRET OF THE OLD MILL BK3 HARDY BOYS

Author: Franklin W. Dixon
Publisher: Grosset & Dunlap
Pages: 192
Genre: Literary
"Determined to learn the secret of the old mill, Frank and Joe employ a clever ruse to gain entrance and become trapped. There they unravel two mysteries, one involving a counterfeiting case and the other a national security case about the missile parts that their father is working on."--
ISBN: 9780448489544