|Dungeon of Doom!|
Using the Key from the inside cover of Mentzer (Red Box) Basic DM book, you may notice there are plenty of beds. Even for the skeletons (the main inhabitants), ruled over by the Skeleton Master. His friend and close neighbor is the Goblin King. They both had a statue erected in their honour but the King's fell down a sinkhole!
This looks like a dangerous place to explore. The goblins set plenty of traps and snares. You can get away by heading down the river.