A huge pedestrian crossroad that has completely collapsed on its north end. The stones set in the thirty-foot-high ceiling continue to fall 2-in-6 every round. The free dead trapped beneath the rubble reach out and grab anyone crossing the room above. Passages leading to the east, west, and south are all barred by closed gates.

• Stones — 3-in-6 chance a falling stone hits a target (choose randomly among those in the room). 3d6 damage; save v. breath for half.
• Grab — Passing through requires a save v. petrify or become grappled by grasping undead arms, unable to move. Save v. petrify at end of round to escape.

(Diagram with nodes 6.8, 6.4, 6.9, 6.11)