One of the problems with Spook's sequences is that I had to break the chapters timewise longer than I'd wanted to. Originally, these latest three or four Spook chapters happened in the course of a week's time. However, when I added them into the rest of the book, I realized I had to space them out a lot farther because of the things happening in Vin and Elend's timeline.
So it's a little bit awkward. Three chapters ago, Spook heard men mention the rumors Durn was spreading about him. Then we had two chapters dealing with Sazed and Breeze's arrival. Only now can Spook finally track down Durn and demand to know about the rumors he was spreading.
It would have made much more sense to have had Spook find a way to do this earlier, but I just couldn't work it in until now. The “count the skulls” thing is coming up too; I haven't forgotten it. Unfortunately, it suffered from this same issue.