The Battlespire has been attacked; absorbed into the endless Daedric realm of Oblivion itself. The emperor has already sent an agent check things out; she hasn't returned. The emperor sends you in next. As soon as you enter, you'll find there is no way back into Tamriel. Daedra have overrun the Battlespire. It is up to you to restore four of the destroyed anchors holding the Battlespire into Tamriel, and fight back the Daedric invaders.