Before he is done, Gabriel will once again be drawn into a world he thought he had left behind forever, and will come face-to-face with a remarkable cast of characters: a glamorous London journalist who is determined to undo the worst mistake of her career, an elusive master art thief who is burdened by a conscience, and a powerful Swiss billionaire who is known for his good deeds but may just be behind one of the greatest threats facing the world.