All they have to do is set aside the time to sit down at a keyboard and produce 80,000 words. That's the hardest part - actually producing the wordage.
Which has got me thinking. I have started a blog whilst writing three columns a week for the Examiner and whilst being only a third of the way into the final novel in the Reaper series. I'm going to be busy.
Reaper, by the way, will be followed by Angel (already written) and the trilogy will be completed with Redemption (which I am in the process of writing).
Then I have an Irish thriller to finish that I started a year ago.