Derek, too, gives another nod to acknowledge Stiles's response. "Yeah, I know..." he replies and his voice trails off thoughtfully. "I always kind of wondered why it was under the high school, but it's been there for like a quarter of a century or something, I think, so maybe it wasn't a high school when my ancestors put the vault there. Maybe the school was something else once upon a time." He really has kind of always wondered this and it's never really been explained to him, but then he never really questioned it, either. You just didn't question Talia Hale. No one did, because once they started to, that was when things would get ugly and messy. His mother had been a good Alpha. He'd been an embarrassment. Remembering that actually makes him wince a little.

He lifts his eyebrows a little. "Do I even want to know?" he asks, but it's mostly rhetorical. He probably doesn't want to know. Even if he did, he's pretty sure he doesn't actually care.

"We should probably get going then," he thinks aloud. "Make sure we give ourselves time in case the train station is equally as confusing as literally everything else in this hell hole and we end up on the wrong one, no?"

Derek's tired of running, so his response to that last is a deep breath and a long-suffering sigh coupled with a nod. Yeah. That's exactly what he means.