Blackwood's Ghostly Captivity

The heavy oak doors slam shut behind you with a deafening thud, cutting off any path of retreat. The cold light of the full moon barely filters through the high windows, catching the silhouette of a figure hovering in the air amidst the darkness.

Another living soul has come to its doom...

— You have committed a folly by crossing this threshold. Now, the castle will not release you until you play its game to the very end.