oh damn I hadn't considered that. I was thinking either 'Hazel has amnesia' or 'Hazel is secretly a denizen' with the former being more likely up until the end of episode 5, but... yeah, that stinger. you might just be on to something.

I think the reason Simon is one the train is because he did something horrible. This season is all about the lies we tell ourselves, and I think Simon is swallowing some serious guilt.