Assassin's Creed 3 developer, Ubisoft Montreal, thinks it the game has "one of the best villains in games".
The game was showcased at San Diego Comic-Con, and Ubisoft put together a great video of fan cosplay on the showroom floor.
Alex Hutchinson, creative director on the game, says the team put a lot of effort into the villain, but that gamers will need to wait until the game's release in October to see who, or what, it is.
Check out the full AC3 at Comic-Con video below.