What if King Arthur was more than a myth?

On a starlit summer’s night in the Welsh mountains, an old man is torn from sleep as an ancient prophecy unfolds.

On the other side of the Atlantic, an American antiques dealer lies dying on the floor of his shop, blood ebbing from a fatal stab wound.

In San Francisco, Mitzi Fallon begins her new job as lead investigator for the FBI’s Historical, Religious and Unsolved Crimes Unit. When it emerges that a priceless Celtic relic has been stolen from the murdered antiques dealer, Mitzi finds herself drawn into a mystery that reaches from the heart of the modern US government back to a man once dismissed as myth: King Arthur