[ He notices that lack of a reflection right as she does. That doesn't necessarily mean vampire though, right? It could just be a weird Carnival change? Who knows. Needless to say, Strange has tensed up a bit and is definitely more on guard.

Still, even if she was a vampire, she wanted to leave here. Which...is good, right. Unless she's lying and just wanted to bring him somewhere private so she could kill him, oh Strange you idiot, that's probably what this is.

He walks towards the mirror, keeping an eye on Hinawa all the while. But it's obvious his demeanor has shifted slightly: he's way more suspicious now, trying to somehow watch Hinawa and watch the mirror at the same time. Placing a hand on the mirror, he mutters something under his breath, still watching her. ]

There. The spell should be active now. Simply walk through this mirror and you'll pass through to the mirror in your room--and don't worry, it will only take a moment.

[ And well, if she tries to attack him then he'll just pass through the mirror himself and leave her here. ]