Deadly experiments. Rogue AI. And A cult with the power to destroy the world.

The NUMA team faces a terrifying swarm of bio-engineered sea creatures in their most explosive adventure yet.

'Cussler is hard to beat' Daily Mail

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When Kurt Austin and Joe Zavala investigate a mass stranding of aquatic life in the Indian Ocean, they accidentally uncover a much deeper mystery.

A strange figure soon steals NUMA’s findings, forcing a high-speed chase—someone really didn’t want them examining those dead whales. But who, and why?

A cryptic text through the NUMA satellite network makes things still stranger: these odd phrases and numbers look like NUMA codes. But who could be tantalizing the crew with such specific knowledge of their tech?

Are they being helped by an old friend, or lured into a trap by a traitor who knows a little too much about NUMA’s inner workings?

Kurt, Joe, and even Max, the agency’s supercomputer, will have to investigate like never before as they decrypt data, infiltrate a cult of cloned men, and prepare for a battle on two very different planes: one physical; one digital.

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PRAISE FOR CLIVE CUSSLER:

'The Adventure King' Sunday Express

'Just about the best in the business' New York Post