Not really a new world so much as an old one turned on its head. With the proliferation of post-comic or post S7 fics out there, I felt a little nervous about going back to a season that everyone has pretty much done to death. I think there tend to be more Season 4 and 5 fics out there than anything else. Still, this has been such a fun era to write, and putting them in this situation was just fun.