TO THE ENDS OF THE EARTH: As he waved goodbye to his father, who was setting off on another archeological dig, Johnny looked forward to the simple summer life: helping his mother run the family’s tour business, canoeing, sightseeing, and spending lazy days on the waters of Puget Sound. But when his father mysteriously disappears on the other side of the world, all those plans change. Now, Johnny begins an adventurous journey in search of his father. One that pits him against the forces of evil, where he matches wits with the dangerous Hydra League—a secret society pledged to guard one of the greatest treasures the world has ever known.