The Reaper of Obsession doesn't creep me out nearly as much as the Reaper of Thirst did, but the journey to get there is interesting. From earlier issues it's plain that Sissy is looking for lost Reapers, and there's an ambiguous undercurrent here about just how far Ginny is willing to go, and the bargains she'll make, to find them. It makes me question just how Clara got into Obsession's clutches in the first place, to be honest, but that's one of the main points of interest for me in this series, I think - the multiple motivations, and the way that every element of the story is a proxy for everything else. It's very well-constructed that way.