Okay, in seriousness. There is some editing thing here and as much as I'd like to say it's the cat... it's probably not the cat. Back to the minor focus on edits and there is that little detail such as punctuation and when to use things in correct form, including the apostrophe. It can be an important factor in a sentence, so it's something that you'll want to make sure is done right throughout the story. The apostrophe can mean the omission of a letter or more, possession or make an item plural. All depends on the usage.
The big conflict in your story could be viewed as a catastrophe. Things have to go wrong, but they also have to be built up throughout your story. Even most surprises, if looking back later, readers will often find subtle clues that hint towards the bad times ahead. Making sure that the big bad moment is not only well lead up to but gives the reader the promises the story makes can be a major challenge for both rewrites and edits.
One is the nit-picky focus from this slightly joking topic. Going through and making sure every apostrophe is correct does take time and is something one does at the very last bit of editing because you don't want to be doing rewrites at that point. The final final minor edits is where you just fix the tiny things to try and make it the best possible. The other forum is well, all the things that go wrong at the climax of the story.
What do you think? Cat-apostrophe? or Catastrophe? Need another cat?