Subduing Gas Chamber
Level 5Hazard (Complex)HazardMediumLegacy
AC
10
HP
40 (BT 20)
Speed
0 ft.
Perception
+0
Fort
+15
Ref
+9
Will
+0
Stealth DC
10
Immunities critical-hits, precision
Recall Knowledge DC 20 (arcana)
Abilities
Slam Door↺
Trigger A creature opens the desk drawer without holding the release button under the desk
Effect The wooden door to the room slams shut and locks, and the trap rolls initiative.
Sleeping Gas
Saving Throw DC 22 fortitude
Maximum Duration 4 hours
Stage 1 Slowed 1 (1 round)
Stage 2 Unconscious with no Perception check to wake up (1 round)
Stage 3 unconscious with no Perception check to wake up (1 hour)
Disable DC 26 thievery (Trained) to disconnect the wire to the counterweight, preventing it from falling, or DC 20 crafting (Alchemical Crafting) to create a counteragent to the sleeping gas
A mechanical sensor in the desk drawer releases a counterweight in the wall, which slams the door shut and opens the sleeping gas tank under the bed, allowing gas to fill the air-tight room with a hissing sound.