Yes, they are related, though I believe the programmers had to leave the rest of the quest out, if there was one, and it seems like there was, since they were probably connected more. When you tell Fael you know about the Tanner plot he says something about "you will be sorry for crossing the rune", and then walks away calmly and dissapears. (Kind of strange since I said I was going to kill him), but nothing ever came of it. It really seems like this quest was originally bigger.
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"Not everything ends the way you think it should"
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