After leaving a French cathedral in ruins, the Relic Hunters are being interrogated by the CIA when the mission of a lifetime lands in their laps. The fabled Sword of Saint Peter has been found in Mexico, a weapon rumoured to hold clues to the resting place of the Holy Grail.Still under the thrall of the CIA, Bodie and his team of relic hunters decipher clues left by Joseph of Arimathea, Saint George and Richard the Lionheart. The hunt takes them from Israel to the tomb of the Coeur de Lion at Rouen Cathedral, and Dürnstein Castle. But their search has caught the attention of a terrible, powerful enemy: The Fisher King is the protector of the Grail and will stop them at any cost.Amid tragic loss, incredible discovery, and intense turmoil, the team realize they are not only tracking down the Holy Grail, but the tomb of King Arthur. The stakes are higher than they have ever known.And, as they depart the Grail Castle and venture to the shores of England where ancient Lyonesse and Camelot await, an old and vengeful enemy raises its head. Can Bodie and his team win the day, or will the quest for King Arthur and the Holy Grail be their last?