[Private Dining Room]
"I'm going to assume that thing you're holding is another piece of, what's it called again... "modern technology" like that train, right? That, or you know an incredibly talented mouse-sized artist, which seems unlikely."
The Nexus! See worlds collide, and watch as all the characters with fantasy backgrounds get very confused for a while!
Although if Sam has seen other people unfamiliar with tech-y stuff going through this process, he might note that Lucy seems to be taking it all in her stride quite well.