It has been some time since I played Oblivion. I started a new game, but I am stuck. The Emperor is now dead and I am suppose to fine my way out of the sewer, however I cannot get through the passage way to get to the sewers. It's like an invisible wall stopping me. Any ideas on how to overcome this nonsense? Is there a PC cheat code to get me past the damn sewers? Thank you.

If you are talking about the passage from the room with the Emperor's body, you sometimes have to jump a bit because that passage is a bit raised.

Other than that, I have no ideas, because I've never had problems reaching the sewers.