It'll be okay; I think I can rework the plot. But it's going to require some flashbacks. I have a love / hate relationship with flashbacks.
I spent three days…
I spent three days plotting something in the back of my head, and was getting pretty happy with it, and I just went and read the stories in the same universe that I've published, and there's a MAJOR plot point in established history that completely contradicts what I was going to do. DAMMIT.