Tony shakes his head, adds a last tuft to Wolfy's tail, and taps the end of his pencil against the edge of the sketchpad. "Not that I've seen."

Pausing then, he leans back in his seat, a shift of posture and body language that says he's actually engaging with her. Hey, she's a captive audience, he'll take it. "Were this normal, Earth conditions on a level grade, I wouldn't bat an eye. What's powering it? What technology do they have to turn a mid-19th century locomotive, a museum piece, into something that can defy physics?"

"And if we can find all that out, how can we use that to get us home?"