The Secret of the Old Mill

"The Secret of the Old Mill," the third book in the Hardy Boys series by Franklin W. Dixon, follows Frank and Joe Hardy as they investigate a mysterious counterfeiting operation in their hometown of Bayport. When they receive a strange, counterfeit bill at the local post office, the brothers suspect that something sinister is afoot. Their sleuthing leads them to an old, abandoned mill on the outskirts of town, where they uncover evidence of a secret criminal operation. As they dig deeper, Frank and Joe face various dangers, including booby traps and threats from the criminals involved. Using their wit, courage, and the help of their friends, the Hardy boys work to expose the counterfeiting ring and bring the culprits to justice. "The Secret of the Old Mill" is a gripping tale of mystery and adventure that highlights the Hardy boys' detective skills and determination.

1. Opening Credits
2. Chapter 1: A Five Dollar Bill
3. Chapter 2: Counterfeit Money
4. Chapter 3: The Hardy Boys at School
5. Chapter 4: Another Victim
6. Chapter 5: Curing the Joker
7. Chapter 6: The Old Mill
8. Chapter 7: In the Mill Race
9. Chapter 8: Joe's Courage
10. Chapter 9: The Rescue
11. Chapter 10: The New Boat
12. Chapter 11: A Man in a Hurry
13. Chapter 12: Seasick
14. Chapter 13: Paul Blum
15. Chapter 14: Con Riley Guards a Package
16. Chapter 15: The Chase
17. Chapter 16: A Plan of Action
18. Chapter 17: What Lester Said
19. Chapter 18: Suspicions
20. Chapter 19: The Rug Buyer
21. Chapter 20: A Note of Warning
22. Chapter 21: At the Mill
23. Chapter 22: Through the Roof
24. Chapter 23: The Alarm
25. Chapter 24: Trapped
26. Chapter 25: The Reckoning
27. Closing Credits