Everyone's favorite killer is back in an unexpected way
The original Animus-controlled assassin is back. Altair returns in an unexpected way in Assassin's Creed Revelations. It's not modern-day Desmond entering the Animus to take control of his ancestor. Instead, it's Ezio who experiences the key moments in Altair's life.
There are seals hidden throughout Revelations, which contain Altair's memories and essence. Each time Ezio finds one of these seals, he's able to experience Altair's past. He'll discover the sacrifices Altair made (and the people he killed along the way).