At a book launch recently, I was moaning to someone that I was struggling to finish the last chapter of my book because I wasn't sure how it was going to end. Russell said, brilliantly, "It was an ARC grant, wasn't it? Just go back to the application."
Oh. My. Goodness.
I've just done precisely that, and pasted in a number of finely crafted paragraphs into my chapter to work from. Now I just have to hold my nerve, join up the dots, somehow work in Sir Nilss Olaf, and I'm done.