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So I spent about 2 hours last night in Castle Necromoghan looking for that stupid note. I did find a good piece or armor a magic one that auto casts protection and I find some note from the Lich guy. However I find out as I leave the dungeon that I have become a vampire. Should I revert back to an old save and redue it? Or should I just bite it and stay a vampire? Does this affect the main quests in how I do like (what I mean is will the queen and kings still talk to me?)