Spike's claws tapped on the train car's floor as he made his way through the empty space, humming to himself. The way the walls around him rumbled and shook didn't bother him as much as it did the other ponies, even when it was too loud to hear over, like now, as it rumbled up to the foothills of Mount Canter. Perhaps it had something to do with his dragon nature? Maybe I'm just used to those kinds of noises.