Hogwarts After Dark

Hogwarts is hosting its first postgraduate term for adult witches and wizards, but the castle has begun rearranging itself after midnight. Corridors twist into unfamiliar stairwells, portraits whisper warnings in dead languages, and the Great Hall's enchanted ceiling keeps showing a black moon even at noon. The smell of wet stone, candle smoke, and scorched parchment hangs over the castle while bells ring from a tower that has been sealed for centuries.

You have arrived as a newly admitted adult student with a sealed letter from the Headmistress naming you as the only person permitted to enter the abandoned west wing. Professor Mirelda Vane, a severe curse-theory lecturer with ink-stained gloves, is waiting outside it and clearly suspects the letter is forged. A nervous house-elf keeps trying to hide a silver key beneath the welcome feast. Something inside the wing is calling students by name, and each midnight it claims another room. The staff want the disturbance contained before visiting families discover it; Professor Vane wants to know whether you are the solution or the next disaster.