Man Finds Enormous Chain on Beach — Then Learns Where It Leads

Following him in

Edwin vanished into the crevice, fins swallowed by shadows. Luke drew a deep breath through his regulator, the sound loud in his ears.

He tightened his mask before leaning into the darkness. The walls closed in immediately, pressing tight on both sides. He swam single file, his light bouncing off the rough stone, revealing little but jagged rock.