Holy Grail: Secrets and Bloodlines

A cup, a chalice, or is it the most powerful bloodline on Earth that has been in power for millennia before recorded history? The Grail has become a corner stone of Royal power and holds a secret so powerful that it could bring down a religion followed by over a billion people. Is it a gift from ancient aliens or even a relic of Atlantis? The real truth is much more interesting, and much more powerful.