Eleven thousand meters down, there is no light. And no mercy.
Marine biologist Elena Vargas still hears the screams from the dive that killed her entire team. So when she's offered one last job ? descend into the Mariana Trench aboard an experimental submersible ? she tells herself the money is worth it. The contract is classified. The bonus will erase every debt she has. And at the bottom of the world, in a darkness no human has ever disturbed, something is waiting.
Thirty shapes. Motionless. Patient. Ancient.
When the crew hauls a living specimen aboard the USS Thunderbird ? a nuclear aircraft carrier, a floating fortress of five thousand souls ? they believe they're bringing back the discovery of the century. They're bringing back an infestation. In the ducts, in the machinery, in the bodies of the missing, a species older than mankind begins to breed: methodical, intelligent, starving.
The quarantine will not hold. And to stop the horror from ever reaching shore, someone will have to pay a price no one is ready to accept.
Some doors should have stayed shut. Some depths should have stayed dark.
A claustrophobic deep-sea horror thriller for fans of relentless creature features and slow-burning dread.
