There is a problem in the Catacombs of the Dead with a room entitled, "Abysmal stairwell through catacombs." There should be some connection from this room down further into the catacombs, however, there is not. I realize this isn't exactly top priority, but this is like the only place worth bashing for higher levels... and it is restricted 100% to Magnagora because no one can get to the bottom by walking (Magnagora, however, has a rift constructed to the lowest level).