You are at a complex junction. A low hands and knees passage from the north joins a higher crawl from the east to make a walking passage going west. There is also a large room above. The air is damp here.
[UPWARD] [UP] [U] [ABOVE] [ASCEND] [CLIMB] [ROOM] [WEST] [W] [BEDQUILT] [NORTH] [N] [SHELL] [EAST] [E]