Even though it's been years since they finished school, they still get this strange little mix of anticipation and dread every September. It roils in their stomachs, causing a rise in the sale of Professor Sonningcutt's Sickly Stomach Soothing Solution (or, for the potionmasters, a rise in the raw ingredients that make up the solution, save, of course, for the 99.9% chalk mix), and the nervous tension in some areas of the Ministry of Magic seem to be almost at a breaking point.
And there's always a sudden subconscious collective sigh as, slowly, the Express leaves St. Pancras again.
This Harry Potter story was written by Kate Bolin. If you liked it, there's plenty more at http://www.dymphna.net/fanfic/. And you can feedback her at dymphna@dymphna.net.