Terrorists threaten to expunge all life in the Pacific.

Rooted out of retirement by the navy, a reluctant Cameron Straker immediately finds himself up to his epaulets in mystery: A naval sub that has impersonated the Marie Celeste. His own captain found murdered. And a naval officer who is suspected of being linked to both mysteries or is he?

As Straker's powerful new submarine, Deepseek, powers its way to Tongatapu, he becomes aware of a new danger. He may have let a killer on board.

Pushed to the limit and with time running out, can Straker solve the mystery of the missing submariners and can he save the Pacific region before the killer strikes again?

An action-filled thriller packed with plenty of excitement and lot of twists and turns.

This is where adventure begins!