| You should be able to get through the same way you got in: activate the space in the rocks like a door. A quick way to get all the way out of the dwemer ruins is to cast Almsivi Intervention, which places you in front of the Mournhold Temple, Divine Intervention, which places you in Ebonheart, or Recall.
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There's nothing a little poison couldn't cure... What happened here was the gradual habituation of the people, ... to receiving decisions deliberated in secret; to believing that the situation was so complicated that the government had to act on information which the people could not understand, or so dangerous that, even if he people could understand it, it could not be released because of national security. | 
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