Remus could feel his distrust mirrored in his former classmate, and he couldn't blame her. Things were extremely fraught at the moment, and he was quite sure that any one of her associates would be eager to kidnap him, torture him, kill him... no doubt she'd heard the same about them. It was horrible, it was unthinkable that this was what they had become, but it was just the facts of the time they lived in. No point in getting overly emotional about it.
He gave her a curt nod at her explanation, not quite having the heart to tell her that she may then be babysitting for a lot longer than she had intended. "I don't think you can apparate out of here," he told her, hoping it didn't sound threatening. It was just a fact, but it sounded threatening, no matter how softly he tried to put it.
Remus nodded again, trying to check his peripheral vision subtly at the same time as listening to her. She was being very conversational, which was fine, but it could just as easily be a distraction to draw him in.
"Mmm. I think so," he frowned a little, it all sounded so crazy. "I had put it out of my mind again, when I came home. It was at the end of sixth form, during the prank wars. I thought it was just some elaborate prank at first, but I mean, who could pull this off?" he gestured at the view. "I was stuck for some months, and then one day I woke up back at school and it was like no time had passed at all, and..." he shrugged. It sounded crazy, of course it did. "I just left it, forgot about it. It sounded crazy."