The Secret of the Old Mill is an enthralling mystery novel from the beloved Hardy Boys series, penned by Franklin W. Dixon. In this captivating tale, brothers Frank and Joe Hardy, amateur sleuths with a knack for solving crimes, find themselves embroiled in a perplexing case that leads them deep into the heart of an old mill shrouded in secrecy. The adventure begins when the Hardy boys stumble upon a cryptic message hidden in a hollow tree, hinting...

Timber wolves, a Rocky Mountain blizzard, and a mine cave-in are only a few of the perils Frank and Joe Hardy encounter during their search for the principal members of a notorious gang responsible for a payroll robbery. In the old Montana mining camp of Lucky Lode, the young detectives puzzle over a series of mysterious events. A piano-playing ghost haunts the long-abandoned dance hall. Eerie blue lights flash from the hilltop cemetery in the dark...