During the game you will need to find all the Assassins Creed Revelations Masyaf keys which are know as the seals or key of Altair. The video guides below will show you where exactly to find the masyaf keys. The video guides will also show you tips on what weapons, bomb and special tactics that you need to implement to me more successfull on getting them in the Sofia mission. One of the tips is to be stealthy and use throwing knives. Also take a look at our Assassins Creed: Revelations Walkthrough for more tips, tricks on completing the entire game.