I've seen on the board that a dueled fighter/mage can get both strongholds, but only if he takes the mage tower first. Can anyone confirm this ? And are you sure that if you get the keep first you cant get the tower ? Also, how do you get the Robe of the Aprenti ?

Im playing a dueled kensai/mage 9/10 and have the keep, but really want the mage tower

Someone else can confirm this for me but I am pretty sure you can't get the mage sphere if you already have the keep. You can't get two strongholds (excepting the sphere then keep way) in the game unless you cheat.