Sadde returns home, sleeps, and then goes to school the following day. He arrives and starts looking for Theo, but runs into -
"Yeah! Well, okay, uh, can you think of anything else to test right now?"
"Right now, I don't know – and by the way, what color did you dye my hair?"
"… Ha. Okay, well, if it doesn't disappear neatly, I am blaming this on you for the rest of my short, miserable existence."
"I am okay with this."
"Okay, well, thanks for that," he says.
It doesn't seem to be changing back, or at least, it's not turned back to its regular color from pink yet. It might be getting darker and less pink, though – it's not totally clear.
"...I think it might be changing back."
"… You, uh, only 'think'? Is it not obvious?"
"Nope. Not obvious. It's just maybe getting darker but could just be the light."
"Oh." He frowns. "Well, that's inconvenient if I ever decide I do want to dye my hair, unless it only applies to magic stuff."
"...if it's not just magic stuff then I have no idea what it could be."
"… Just magic stuff would make more sense? Wait, does this mean if you heal me with magic it undoes that, because that would be good to know in advance of me being slightly mangled or whatever."
"Well, um, did your poked finger get unhealed?"
"No, it didn't, that's a good point, so, uh. I have no idea what that means? I mean, I could guess a bunch of things, but I don't know if any of them are realistic."
"Try? You're probably gonna end up with better guesses than me anyway."
"I was going to suggest that maybe it only works against magic I don't want, or magic that affects me in ways that I wouldn't become naturally, or maybe – actually – magic that messes with my physical head, that seems possible, I think." He shrugs. "I don't know?"
"Physical head? B-but, like, the memory charm isn't really acting on your actual brain."
"It's blocking your memories from your soul, not your physical brain," she elaborates.
"So, the soul actually does a thing that's more than, like, sitting in you and apparently giving you some sort of morality or something?"
"You do still have your memories when you go on to the afterlife."
"Okay, I'm sorry, I feel like I've not been caught up on some of this stuff – afterlife?"
"Yeah, you know, life after death, the place you go when you die."
"I didn't realize this was, you know, confirmed? At all? Presumably this is a magic thing, right?"
His hair is noticeably darker by this point.