They set up an expedition. Northeast of the Caribbean and in ten thousand feet depth they seek to find traces of the famous empire. Immediately, they become focus of the media. They become watched by the AUTEC military base and followed by the ruthless Cuban treasure hunter González.
Soon their expedition is disrupted by sabotage and without explanation the NSA gives orders to stop their investigation.
The search for a possible common origin of all cultures is all about to fail. But in the meantime they have made a breathtaking discovery on the ocean floor. So, amidst a heavy storm they decide to start a risky dive ...
This is the final part of the adventures of Peter and Patrick, which had started in Southern France and Egypt.
