[There's a gasp of surprise when the stranger addresses her-- she hadn't seen him at all, so it's a bit alarming to Hermione when someone appears out of nowhere, especially with how jittery she already was due to being on the run for quite some months. Seeing that the male isn't out to attack her or anything, though, Hermione calms down before addressing him, a troubled expression on her face.]

I think there's been a mistake-- I'm not supposed to be here. I'm not even sure how I got here, but I can't stay. Is there... is there really no way out of here?