Siren's Spring (Paperback) (ISBN-13: 9798218737818)

For lifelong friends Skot Larson and David Bennett, their biannual "thrill tour" was a sacred ritual-a desperate pact against the slow, inevitable creep of middle age. But as they approached fifty, the aches were deeper, the exhaustion came faster, and the time between adventures felt longer.

On a dangerous cave-diving expedition deep in the Colombian jungle, a catastrophic collapse traps them hundreds of feet beneath the earth. In a desperate search for a way out, they discover what mankind has only ever dreamed of: a hidden grotto, illuminated by a pool of glowing, turquoise water. Water that doesn't just quench their thirst, but rewinds the clock.

They surface from their ordeal not just alive, but reborn. Their old injuries are gone, their bodies are stronger, and they look and feel decades younger. With the help of the American media frenzy and their friend, Buzz, they commit a fatal error in judgment; they share their unbelievable story online. The post goes viral as a modern-day miracle for a world starved for hope.

But their newfound fame becomes a siren's song, luring in predators far more dangerous than any they faced in the jungle. A shadowy corporation, led by a brilliant and dying man, will stop at nothing to possess their secret. Skot and Dave soon learn that the greatest discovery in human history is also the world's most dangerous commodity. They cheated death only to find themselves hunted, their miracle now the very thing that might get them killed.