The Empress V2

Have you ever ended up in a situation where the characters in the story seem to conspire together to stop the story reaching its end. I am finding that with The Empress - now at 650 pages in draft and the characters keep adding more to their stories. I guess The Emperor, The Son and The Thief trilogy was in total 1,200 pages and I never really knew what the ending would be until it was written. I guess I will just have to stay in the story until they are ready to let me know how to write the end.