I started a novel in October 2006 that was a mix of crime and horror with a large portion of the story set in 1920s Sydney. I worked on it solidly for two years and reached the climactic scene and then spent about four and a half years writing ten pages.
Last night, I wrote a thousand words. The first draft should be finished soon.
Sometimes it takes a while to finish things I start, but I always get there in the end.