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Sleep Gas Trap

st tier (
(less than 1 hour)

Instead of a jade mask, the room contains a dust-covered bed with a gold brocade canopy and a faded bed skirt. An inanimate skeleton lies atop the bed.

Bed. The gold brocade canopy is worth 100 gp. Changing the bed’s weight significantly—for instance, by climbing onto the bed or removing the canopy—triggers a pressure plate under one of the bed’s legs.

Possible Solutions
  • An Investigation check or looking under the bed reveals the pressure plate.

Potential Outcomes

Critical Failure or Failure. A hissing sound is heard as gas seeps into the area through the mask’s mouth. Roll initiative. On initiative count 10, a 30-foot-diameter cloud of gas emanates from the mask, spreading around corners. Each round on initiative count 10 for the next minute, the size of the cloud increases by 10 feet, to a maximum of 120 feet. A creature that starts its turn within the cloud makes a Constitution saving throw . A creature that fails a Constitution saving throw against the poison takes no damage but is poisoned for 1 hour. While poisoned, the target is also unconscious . An unconscious creature repeats the saving throw whenever it takes damage.

Success or Critical Success. The trap isn’t triggered.