The Shadow of War: The Rise of OceaniaPaperback, 30 April 2023

In the world's undersea realms, the superpowers are pressing. Climate change is ravaging the surface nations, and their militaries are surging into the oceans to seek out new resources to sustain their exploding populations. Now Truman McClusky, mayor of the underwater city, Trieste, must gather a team of operatives and travel the world to steal the most unique and deadly weapon ever invented for use underwater. War is looming, and to win a war, one must do whatever it takes, even if it means embracing your darker side.

The other books in The Rise of Oceania series by Timothy S Johnston:

The War Beneath 9781771484718
The Savage Deeps 9781771485067
Fatal Depth 9781554555574
An Island of Light 9781554555819