I know what everyone is thinking just another thread on Unknown but me and Maikeu69 have come up with a few good ones so please read. First off what happens to Eraques's body because we know his heart lies with Terra. So maybe Unknown is Master Eraques's Nobody which would also exsplain why you face him in the Land Of Departure. On to a diffrent theory what about Master Xehanort's body? He released his own heart to take over Terra so maybe Unknown is his Body? What do you think? And before anyone says you can have a Nobody without a Heartless just look at Kairi for instance.