In the loo, there was a wall.
As walls in Hogwarts go, it was not a particularly strange or unique wall. Simply an expanse of stone, smooth and cool from the lake overhead. But unlike other walls in the school which were occasionally magical, talking, spotted, or otherwise, this wall was covered in graffiti.
A variety of handwriting and inks speckled the wall, with snippets of rumors layered upon each other. Here and there one could see dried soap, from where people had tried to Scourgify the wall into oblivion.
But here it remained, standing the test of time, a testament to the gossip and social networking of Hogwarts, School of Witchcraft and Wizardry.
The Rumor wall is now open! Each year there will be a post noting the new year. Feel free to post rumors, true or otherwise, about characters and relationships.