Lower and lower the mist sinks, sweeping through the corridors of the dungeon and filling them entirely. Past the kitchen, beyond the laundry room, beyond the entrances to both the Slytherin and Hufflepuff Common Rooms. It doesn’t leave an inch uncovered. Any classrooms left open are soon filled.

Only sealed entrances manage to repel this strange phenomenon. Up, down, left, right. Who really knows in this fog.

The situation is only helped by the fact the students are thankfully up and away in their lessons.