Twenty thousand years ago, when early man made his way to North America, a tribe of prehistoric predators made the great trek as well. But these giant, deadly beasts seemingly became extinct…and humans lived to become the most violent creatures on Earth. Man’s brutal nature reached a boiling-point with the execution of Russia’s last czar and his entire family. But some believed that the czar’s children, Alexei and Anastasia, survived―and came to America with the treasury of the Romanov dynasty. That legend was born on July 17, 1918―and lives on to this day…