For nine centuries, the Keeper of the Stone of the Templar Order, Thomas Amnet-Garden, has been wandering around the world in different guises. And all this time, the immortal and invulnerable to conventional weapons Mountain Elder, Hasan al-Sabah, the founder and head of the order of assassin-killers, is following his trail. After all, by unraveling the secret of the Stone and destroying its owner, he will be able to gain absolute power over the world.