You are in a debris room filled with stuff washed in from the surface. A low wide passage with cobbles becomes plugged with mud and debris here, but an awkward canyon leads upward and west. A note on the wall says "Magic word xyzzy".
[DEPRESSION] [ENTRANCE] [CRAWL] [COBBLE] [PASSAGE] [TUNNEL] [LOW] [EAST] [E] [CANYON] [INWARD] [INSIDE] [IN] [UPWARD] [UP] [U] [ABOVE] [ASCEND] [WEST] [W] [XYZZY] [PIT]