TftYP: Rolling Stone encounters in the Tomb of Horrors (d4)

Every ten minutes after the Gas is released in the Knockout Corridor, roll to determine if a stone juggernaut enters the room.

Citation

Tales from the Yawning Portal Chapter 7: Tomb of Horrors

d4 Result

1-3

Nothing Happens

4

A stone juggernaught comes out of the 20-foot square room to the north and rolls Roll 1d6*10 feet south, then west. Everything it rolls over is squashed to a pulp. There is no appeal.