Raise the Nautilus

A tech billionaire discovers a zero-sum energy device from wreckage located at the bottom of the world’s deepest oceanic trench …Deeper than Mount Everest is tall.The United States Navy sends for Mallory Capehart, their best salvage officer... Commander Mallory Capehart USN.She is haunted by memories of a past disaster that killed everyone on her dive team and suffers from acute PTSD.Her mission? ...