With the return of Queen Chrysalis in the Season 6 finale, several questions are left unanswered, and not just coz she flies away instead of getting destroyed like Sombra, or reformed like Discord and Starlight. (Even the Dazzlings are either powerless or aged into dust having lost their magical source of immortality as humans for a thousand years)

Basically, a fall over the edge of Canterlot should have been fatal, unless she was fast enough to recover with her wings. How could she survive a fall like that? Shorter falls have threatened to kill Twilight on more than one occasion.

Also, why didn't she return immediately? What has she been doing for the past four seasons?

The following headcanon in this story might explain that, though the writers probably never even thought of it. I initially came up with the headcanon to find peace so I'm not too stressed out about what happens next, but it does kinda make sense when you think about it. Fair warning: It might seem too out there, and you can just ignore it if it goes against what you want to think.

My first fanfic for here. I hope it's better received than my comments on the pony forums.