Stairs lead up to a revolving door. |
Mechanical Trap |
The revolving door is actually a screw that secures the stairs to the ceiling.
Threads at the top of the door can be seen with a DC 16 Wisdom (Perception) check. A DC 14 Intelligence (Investigation) check can determine that passing through the door by rotating it counter-clockwise unscrews the door, while simply rotating the door clockwise tightens the screw. After the door is used 3 times, the screw comes out of the ceiling, collapsing the staircase. Creatures on the staircase take 1d6 falling damage and 2d6 bludgeoning damage. The trap can be neutralized by simply rotating the door clockwise after each time it is used. |