Just be careful not to make too many changes until he's out of the city. If he dies early on, then that might shift history all on its own.

[And it would be a terrible waste if neither one of them survives, wouldn't it?]

I'm not sure yet. If possible, I'd like to change Edelgard's path... what would happen to me?

[He turns to Sothis again, only looking mildly curious instead of afraid.

"You are my vessel, and you are capable of shifting time all on your own. I believe you would live on. Despite the knowledge of a possible future, you are still from this time, after all. If you are the one to enact the change, it may even provide some protection for the little one... though there would still be no guarantee."]