Years passed, but the brilliant mind of the Mentor did not dim at all, nor did his blow lose the fatal power and accuracy. Ezio Auditore embarks on an epic journey to find Altair's missing library, and at the same time, perhaps, the key to victory over the Templars, the sworn enemies of the brotherhood of assassins. The path leads to troubled Constantinople, where a growing army of Knights of the Order of the Temple threatens the Ottoman Empire. Following in the footsteps of his great predecessor Altair, Ezio must crush the Templars one last time. The stakes are constantly rising, and what began as a pilgrimage has turned into a race against time.