"They just tore down what was there and built up on top of it?" he asks. "That could have happened. Not like there isn't a ton of abandoned buildings around town." Of course, that would still mean the Hales had to have connections so that the right arrangements could be made to keep the vault a secret, and accessible. "And with the number of people on the force, you can get away with hanging around those places without getting noticed."

Stiles coughs into his hand. "Eh, probably not," he draws out the first word. The samples the tattooist had weren't that great, and from Scott's reaction before Stiles took a header into the floor, definitely not appreciated.

Nodding, he looks back towards the door. "At least with the trains, there's only two options - and it won't take long to figure out if it's going the wrong way." There's got to be a system map in the station, or on the train cars themselves.