From Pathfinder Society Special #3-99: Fate in the Future, which isn't enabled.

Flensing Trap (7-8)

HAZARD 7

Stealth +17 (expert)

Description Rotating blades extend from the walls, floors, and ceiling of the surrounding halls when weight is removed from the trapped floor tile.

Disable DC 27 Thievery (expert) to disable the pressure plate

AC 25; Fort +18, Ref +12

Hardness 16, HP 58 (BT 29); Immunities critical hits, precision

Eviscerate (attack)

Trigger Weight is removed from the trapped floor tile

Effect Blades extend from the floor, ceiling, and walls of the surrounding hallways to eviscerate all creatures in the area, dealing 4d8+10 slashing damage (DC 29 basic Reflex save). Creatures that critically fail also take 1d6 bleed damage.

Reset The trap resets after 15 minutes.

Pathfinder Society Special #3-99: Fate in the FutureOGL