In one of the compartments, there sat a lone, white-haired female. From her size, it was clear that she was a first year--or a second year that was a bit delayed in hitting a growth spurt. From the way she was dressed, in cerulean robes that most certainly did [i]not[/i] match the required school uniform, it was abundantly clear that she came from a wizarding family--and a fairly traditional one, at that. 

Arriving early, September had sequestered herself in this remote compartment, and started flicking through a well-thumbed book of fairy-tales opposite her cat. By now, she was thoroughly bored--but almost all her friends were either older or younger than the pureblood; she had no-one to actually share the ride with. Well, she could always try reading her schoolbooks... but what kind of impression would that make on her first day? She didn't want to be in Ravenclaw! She got vertigo too easily for that.