Zach continues his epic quest to find the lost civilization of Atlantis and proof that it was a real and thriving empire. On the island of Sardinia, he uncovers even more compelling evidence of an advanced civilization matching Plato's description of Atlantis--both inside a dark cave and amongst ancient circular ruins. He then shifts his search--looking for clues about the descendants of Atlantis and their connection to the rare RH negative blood type. This ultimately leads him to a shocking new location in Morocco, where he uncovers more connections to Plato's checklist than anywhere else he's encountered on his search.