The room behind the wooden door in the Main Hall. A large red armchair is placed in the middle of the room, facing away from the door and toward a very large red brick fireplace. Under the chair is a purple rug with a green sun. There is an empty flowerpot in either corner next to the door.
Home to some sort of disembodied voice, as gleaned by Neka’s Message spell.
Crawling through the fireplace transports the adventurers to the Elemental Plane of Fire.