From Pathfinder #176: Lost Mammoth Valley, which isn't enabled.

Soul Draining Cage

HAZARD 6

Stealth +15 (expert) or Detect Magic

Description Necromantic runes inscribed on the cage bars and lock drain the vitality of living creatures who interact with the cage.

Disable DC 25 Thievery (expert) to drain the runes' power harmlessly or Dispel Magic (3rd rank; counteract DC 22) to counteract the rune

AC 10

Soul Drain (arcane, void)

Trigger A creature touches the cage bars, door, or lock directly or with a tool

Effect The trap deals 4d8+18 void damage to the triggering creature, creatures inside the cage, and all creatures adjacent to the cage (DC 27 basic Fortitude). On a failed save, a creature is also Drained 1.

Pathfinder #176: Lost Mammoth ValleyOGL