Writing Final Days, that is. Or when I say it's over, what I mean is: I've finished it to the point where I'm thoroughly sick of it. So it's been emailed off to my agent and editor and at some point, assuming they're happy with what I've produced, I'll get it back, with editorial suggestions scrawled all over it, and I'll have to read the damn thing again. And then there'll be a typesetter's comments (not counting any 'first readers'), and then I'll have to read the damn thing again. Carefully. And then, if all is well, I'll get a copy of the page proofs to read, and, yes, I'll have to read the damn thing. Again. Very carefully. Searching for those niggling little errors.
And I'll still get email pointing out that somebody drives up in a balloon-wheeled truck on page XXX and departs on the following page in the same vehicle, which has miraculously swapped balloon wheels for tractor treads. There will always be mistakes (and please note, if you spot them, I am grateful to hear of them. If nothing else, it keeps me on my toes).