Improving faction in Felwithe (as a Necro) for Mystic Cloak quest?

[medievalerror]

So, I want to work on the Mystic Cloak quest (which, it seems, necromancers can use, but I am having trouble doing the quest). I read that you could turn in batwings in Felwithe for faction improvement. However, my attempts at this continue to fail. I first tried turning them into Niola Impholder while Feign-Death'd, but that didn't work. Next, I tried FDing, handing them to her, and then un-FDing and handing them to her. That also failed. Finally, I tried to hand them in after FDing then un-FDing behind her and starting the trade window when not FD. In all of these attempts, I was standing behind her. Each attempt failed (during the last, I bit the dust). Any suggestions on how a necromancer can do this quest and/or improve Felwithe faction?