A groundbreaking discovery.
A secret buried beneath the waves.
A global threat no one saw coming.
In the depths of the Caribbean, a nuclear submarine is forced to abort its mission without explanation. As questions swirl, naval investigator John Clay uncovers a startling link to a team of marine biologists on the brink of an extraordinary breakthrough.
Led by the brilliant Alison Shaw, the team has spent years working to communicate with dolphins—Earth’s second-smartest species. With the help of advanced AI, they achieve what was once thought impossible: the first two-way conversation between humans and dolphins.
But the dolphins reveal something far more dangerous than anyone expected—an ancient object hidden on the ocean floor, a secret that was never meant to be found.
As powerful forces close in on Alison’s discovery, she is forced to put aside her mistrust of the military and join forces with John Clay. Together, they must uncover the truth before a looming crisis in Antarctica threatens the fate of the planet.
With time running out and enemies lurking closer than they realize, Clay and Shaw are racing against a mystery that could change the course of human history forever.
