Learn iron will from the Grand Master of the Templars.
He will have you perform three tasks:
-> Climb to the highest peak of the Alburz Mountains.
--> This is the AT entrance, where one drops the dragon eye to open the door.
-> Slay three beasts in the Anatolian hills.
--> The easiest route is to kill the three oryx that load in the sub-area.
--> The Anatolian Hills are the area off the north exit of the path between Antioch and Mosul
-> Slay three Saracen dogs in the enemy camp.
--> Any NPC seems to work. Egyptian soldiers are one of the easiest/fastest ways to complete this objective.