He doesn't have much time to do so, because as his feet hit the tile, they're suddenly not hitting the tile anymore. He's on a hardwood floor, and there are two girls waving their hands around and- shit, are those pointy ears? He hopes they're not faeries.
He really, really hopes they're not faeries.
Towel in hand, he goes into something like a fighting stance while drawing in as much power as he can. He feels his skin prickling with energy. "Alright, I don't know who or what the hell you might be, but I'm a wizard and I will not hesitate to start setting things on fire. How did you do this?"
The girls titter - and the pointy-eared one blushes - exactly as though, well, they've just had a man fresh out of the shower appear in their room and they're adolescent girls. The brown one averts her eyes, and the pale one goes for the bookshelf, murmuring something in an incomprehensible language.
He clears his throat. "Okay, that aside, my questions and threats stand. Who are you, where am I, I have fire. Not that you can... understand a word I'm saying... Dammit. Am I going to have to start miming? If I have to mime, I'm putting this towel on more securely."
"You should, uh, be able to talk to us now," giggles the brown one.
By this point, he's lost most of his steam with the threats. If they were going to hurt him, he's pretty sure they'd be less... teenager-y, about it. He sighs and runs a hand through his hair. "Okay, so... what the hell is going on, for a start. I'd love to know that. What's going on, who are you, how in God's green hell can you summon corporeal entities, etcetera. And are you going to hand me to the vampires on a silver platter, because that's kind of how my life has been going lately." After some redness and some chewing on his lip, he adds in a rush, "And my water heater's broken, so, what- It's not- That's not indicative. Not that it's relevant. You're like twelve. But still. Not indicative."
"What would vampires want you plated for? That seems kind of beside the point, and also, you look like a human to me," says Korulen.
At the mention of spells out of old books, Harry would feel an urge to spit on the ground and turn around twice, but he's not actually a grizzled prospector. Instead, he puts on his most potent Warden Face. "And as a warden of the White Council, I'd like to inform you that spells out of old books are a terrible idea. They lead to things like Chicago being eaten by necromantic death tornadoes. That kind of thing can get your fool head chopped off for being a warlock." This ominous pronouncement is slightly weakened by the fact that he's wearing only a threadbare towel. Most of his pronouncements will probably be weakened by that, really. "It's good that you checked you can reverse the spell, though. Some idiots do this stuff on a whim and just assume that whatever they do can be reversed, because why would magic ever permanently inconvenience them?" (He's not talking to his past self here, why on earth would you think that? That's very uncharitable and not at all true.)
the Outside. Great. He's been summoned by teenage Outsiders. They don't look particularly tentacled, but stereotypes have never helped anyone. For a moment he wonders, inanely, if they're going to get in trouble for reaching beyond the Outer Gates. Then he remembers that they would like nothing better than to weaken the fabric of reality, so they probably aren't all that careful about the Laws of Magic.
But... he hasn't met that many Outsiders, but the ones he's seen somehow make him doubt that they come in "giggling teenager" flavor. Maybe there are more things outside of heaven and earth than are etcetera etcetera. He doesn't really know how he'd test it, without possibly aiming his Sight at a pair of Outsiders, though. Which he isn't really keen on. He likes keeping his brain where it is.
"Yeah, if you can do spells backward we definitely have different kinds of magic," he says instead of freaking out at the nice possibly-tentacle-monsters. "And if you have vampire friends, I'm pretty sure we have different vampires too. Unless they happen to be sparkly and eat sex energy, in which case I'd be kind of a hypocrite to knock you for it."
Harry is prepared to give these weird Outsider vampires the benefit of the doubt, for however long these weird girls are going to keep him trapped in a circle. He doesn't exactly have high hopes for them given their counterparts in his world, though.
"I'm not sure this offworlder is the best offworlder. Maybe we should put him back and get another one," says Saasnil.
"It's random, the spell's random," says Korulen, "if we put him back and get another one it'll just be another random person who might not be any more to your liking, and it doesn't matter for proving we could do the spell."
"I guess."
That's kind of what Harry's hoping for, but he bristles at the judgment anyway. "Well excuse me for not being some kind of perfectly inoffensive hippie or something. I tend not to like species that murder and enslave humans as a matter of course. I also tend not to like people who kidnap me out of my damn apartment, in case you were wondering."
Okay. He may be stuck here. BAD. But if he's stuck here, what needs to happen? Molly needs to find another master before the Council beheads her. The Sword needs to go to someone who can keep it and/or give it to some worthy knight. Bob... he's tempted to take Bob with him into this brave new world, but the magic knowledge skull should probably go to the people who are trying to keep Chicago from catching fire in his absence. Somebody needs to tell Murphy. God.
This is shaping up to be a much worse day than he thought.
"Can you send messages back to where you got me from?" he demands. Because if they can, this becomes ever so slightly less terrible. Still the worst day he's had in a good while (the thing with the ghouls aside), but not quite "my lover turned into a vampire, I killed several dozen innocent humans, and I just caused the biggest supernatural war in recent memory" level.
"Don't tell," whimpers Saasnil.
"I have to."
"I can't get expelled I can't I can't -"
"You won't be. I have to tell my mom."
Korulen closes her eyes.
After a moment, the door opens, and a man who looks like he's probably Korulen's dad, complete with pointy ears, opens the door.