Can a knight sacrifice everything he holds sacred in service to his king? King Richard is being held for ransom in Germany, and England is in chaos without a sovereign. The de Granvilles must deliver the treasure that will win their King's freedom. But the Old Man of the Mountain, leader of the Assassins, is ready to take his revenge on Kamil. To do so he will orchestrate a great betrayal, and his tentacles of treachery reach far and deep. Kamil is determined to prevail—the Old Man must not win. But when all trust has been shattered, who can he turn to for help? The fate of a king, the bonds of a friendship, and the depth of an enduring love will all be in jeopardy as Will, Ellie, Kamil, and Hosanna face the ultimate loyalty test, and their final battle.