From Pathfinder Adventures: Troubles in Grayce, which isn't enabled.

Trial by Ice Trap

HAZARD 5

Stealth +16 (trained)

Description A hidden vent in the ceiling is attached to a reservoir of freezing alchemical reagents that can create a bone-chilling cloud.

Disable DC 23 Thievery (trained) to jam the vent closed or DC 26 Arcana (expert) or DC 26 Occultism (expert) to disable the nearby magical sensor

Frozen Mist (alchemical, cold)

Trigger An operator at the maze console in area A13 pulls the associated lever

Effect A vent opens in the ceiling, issuing forth a cloud of frigid fog that quickly fills the area marked on the map. Each creature in the area takes 6d8 cold damage (DC 26 basic Fortitude save). Creatures that fail the save also take 1d8 persistent cold damage (2d8 persistent cold damage on a critical failure). The area remains cold for the next minute, dealing 2d6 cold damage (DC 22 basic Fortitude save) to any creature who ends their turn in the area.

Reset The trap resets when an operator at the maze console in area A13 pulls the associated lever. The trap can be reset only once per minute.

Pathfinder Adventures: Troubles in GrayceORC