Librería Samer Atenea
Librería Aciertas (Toledo)
Kálamo Books
Librería Perelló (Valencia)
Librería Elías (Asturias)
Donde los libros
Librería Kolima (Madrid)
Librería Proteo (Málaga)
When Frank and Joe Hardy stumble upon suspicious activity at an abandoned mill outside Bayport, they uncover a dangerous counterfeit operation hidden behind crumbling walls and rusting machinery. What begins as a simple investigation quickly turns into a life-threatening pursuit as criminals realize the Hardy Boys are closing in. As the brothers follow clues through dark passageways, hidden rooms, and secret escape routes, they find themselves chased, trapped, and repeatedly placed in harm’s way. Each discovery brings them closer to exposing the operation - and closer to serious danger. The Secret of the Old Mill is one of the most suspenseful early Hardy Boys adventures, combining secret hideouts, criminal schemes, and nonstop momentum. First published in 1927, the novel established the series’ reputation for action-driven mystery and physical peril. This Impact Books edition restores a foundational youth adventure for readers who enjoy fast pacing, hidden secrets, and courage under pressure.