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Added note about lore inconsistency with Durian being named Dawnguard in game before reformation.
At this point the waiter will give you the [[Skyrim:Bloodchill Manor Key|key]] to the manor and some leveled gold, completing the quest. Three more dialogue options are given; all will end the conversation. The doors along the entry hallway are now open for use, and when you leave and reenter the cavern all of the destruction from your fight will be cleared away.