Who? All Hogwarts students! Come one, come all! Where? The Hogwarts train, to start. (We'll see about getting to school.) When? End of vacation! What? Heading back to classes for the final year. Why? ..Well, mainly because they have to.
Obsessive complusive disorder was a terrible, terrible curse sometimes.
Not only did it demand of Cassidy that she awoke at a ridiculous hour--she was never up later than five thirty am, and generally awoke at 4:44--but also insisted that her room be spotless at all times, which wasn't usually a problem since she never made a mess, and that she be prepared and early to every occasion possible.
Thus, the night before her return to Hogwarts, her trunk was entirely packed, double checked, sealed off, and set by the door. Her room, bare of anything she would need in the next four months or so before she came back for Christmas vacation, seemed strangely eerie as she sat on the bed, glancing around at her walls. Her Quidditch posters had been taken down and carefully packed away, her books stacked meticulously in her trunk as well. Her computer had gone on the very top of all her items, covered by soft clothes and her ratty old blanket which she concealed from everyone except Remus, who would never judge her for such a thing even if he hadn't known her when it was brand new. She had doubted whether she would need it at Hogwarts, but she supposed it was a good way to contact anyone after hours, or for conversations that didn't need to--or shouldn't be--held in public. Still, she had to admit that she was excited to return to school: to see everyone on a daily basis. This summer had seemed impossibly long, with only a few get-togethers for so many days apart.
It had been a few hours before she got to sleep, the butterflies in her stomach keeping her wide awake into the wee hours of the night. But at five o'clock, she was up and raring to go. By the time she arrived at the station--easily one of the first ones there, even beating the first pair of first years, and a good half hour early--the butterflies in her stomach had multiplied. Her parents hadn't come to see her off: they never did. Her father was actually away at a Quidditch conference, and her mother never quite saw the point in painful goodbyes. She had left Cassidy a note on the counter that morning, and that was that. Cassidy didn't dwell on it.
As she boarded the train, her trunk already safely aboard, she walked the halls until she found an unoccupied compartment about halfway down, and settled herself inside, tugging on her braid over and over. Remus and Lily would know that Cassidy had to be early and would save a compartment for them, but usually Remus sat with the Marauders. Sometimes that involved sitting with Cassidy and Lily anyway, since James could be found where Lily was. Although, after this summer, she couldn't possibly imagine all of their crew not sitting together. She supposed she'd just have to put up with Black.
Now to wait for all the non-OCD affected people to arrive.