You should have acted. They're already here. The Elder Scrolls told of their return. Their defeat was merely delay until the time after Oblivion opened, when the sons of Skyrim would spill their own blood. But... there is one they fear. In their tongue he is Dovahkiin; Dragon Born!
Daemon01 says
It was a nice addition. But it just got very boring after you finished the main quest to the point where there really is no point in playing it.
The DLC's were terrible bug infested and half-assed.