The corridor behind the hidden eastern door from JAN 28 leads here. This room is circular, in a 8 yards radius. The area is not lit (-7 Darkness penalty).
This round room has smooth grey stone walls, floor and ceiling. Near the eastern side of the room, there is a sturdy metal ladder going 25 yards up. At the top of the ladder is a trapdoor, well hidden on the other side (-5 to detect), that leads out to the surface (at a mountain side ruin) and out of the dungeon. The necromancer uses this ladder to flee from threats invading his lair that are too dangerous to confront.