Well, these are very valid questions to have (as well as the 21350314 similarly-worded questions on Ao3), so I will do my best to answer them.
You see, these questions can all be answered by a simple statement. And that is:
You see, I posted the final chapter of S.T.I.L.E.S this morning, just before I headed off to work. And then during my lunch break I was alerted (by the screaming masses) that a glitch had occurred during the submission (that I hadn’t picked up on) and it cut the chapter off about halfway through. And because I had to way to access the chapter to edit (my work computer doesn’t allow outside sites to be accessed) I deleted the entire chapter so I could re-submit it once I got home. That’s why people have been receiving ‘phantom’ emails and not finding the final chapter.
But not to worry, because the final chapter of S.T.I.L.E.S is up now! HOORAY!
And that’s my one and only foray into the Science-Fiction genre, goodbye, I will continue my life in the Fantasy genre instead.