Apparently there are already major spoilers for chapter 13 leaked, and they could start circulating round the internet before Friday. To anyone on social media, might be a good idea to start staying off it early (I am).
In my time on OT, I don’t think I’ve encountered anyone terrible enough to post a leaked plot point on here, but if you’re reading this and you’ve heard something… don’t post it before Friday, please. For the record I don’t know what the spoilers are, I’ve just seen a tweet passing on this advice.