I completed the Catchin' The Cousin Quest in a couple of different ways and I still have the quest in my log. It remains in "Mentioned" (purple) state. How do I turn in the quest? When I killed the Scarlet Brotherhood assassins that try to poison you, nothing happened. Darlia was still in prison and acted as if the ambush never occurred. I then let the scenario play out as intended by allowing the assassins to poison my party and get away. My party woke up to a monologue and had to fight a group of monsters to reclaim their gear. When I returned to Verbobonc, Darlia was dead. I tried discussing the matter with the captains and Wilfrick, but did not find any options to resolve the quest.
