10,500 BC - The sinking of the first Hochk

Was there a mysterious high culture before the pharaohs? Do the temple builders of Angkor Wat, the monumental statues of Easter Island, the pyramids of Mexico and the Nazca Lines have something in common? Are they encrypted messages from a civilization that flourished before our historiography? Successful author Graham Hancock is on the trail of a submerged culture around the world that laid the foundation for the following advanced cultures around the world around 13,000 years ago.