The so-called flood tunnel intakes at Smith's Cove turn out to be the remnants of an illegal fish-salting operation, and that ...

It may be less a clue than the reason the mystery never dies.

Centuries-old clue: The Oak Island cipher stone, found about 90 feet underground in the early 1800s, allegedly pointed to buried riches. Lost and unverified: The stone vanished without early sketches ...