I have looked up several posts to the Tingalf quest, but I have not been able to find out some answers. People only put in what happened wrong with them, and I'm not interested in that! The annoying part is, I can solve everything with the Tingalf quest, except get rid of the quest from Trevor in the Merchant's Guild. I talked to him first, before Marcus and Lt. Robins about Tingalf, but now it seems that I can't get a prompt to end the quest for him. My saved game takes place after I helped Maria, after I got the quests from Trevor and Marcus. What do I do? How am I supposed to get something from Trevor? None of his speech options solve the quest. I tried rearranging the order in which I solve quests between Marcus, Lt. Robin, and Trevor, but to no avail. Can someone help me out?