"Is that the Gazelle-356?" asked Billie, as he was admiring the incoming train, while we were standing on the edge of the platform. It was quite a windy day, so the smoke got cleared quickly, giving us almost perfect visibility (as good as you can get in a train station full of black smoke, that is). "Sounds like it," I said, recognizing the whistle of the train, and the rhythm of its axles. "But most Gazelles sound similar. We need to see the locomotive before we know. The 356 is a bit longer than the others and has a larger diameter for its chimney." "I know," Billie said. "It really looks like a 356." Jack, who clearly didn't understand anything, ate a bite of a small apple pie he bought from a lady walking around the platform (you always get all kinds of peddlers in train station p

