From Pathfinder #147: Tomorrow Must Burn, which isn't enabled.

Phantom Bells

COMPLEX HAZARD 6

Stealth +10

Description The echo of diabolic bells reverberates with a bone-shaking clamor.

Disable DC 27 Religion (expert) to break the curse with recitations against the power of Hell (2 actions), or DC 22 Performance (expert) to Perform an opposing composition

Distant Ringing (auditory, sonic)

Trigger A living creature approaches within 30 feet.

Effect Sounds of creaking metal fill the area as the phantom bells begin to swing and the haunt rolls initiative.

Routine (1 action) The bells toll, dealing 4d6 sonic damage to each living creature within 30 feet (DC 24 basic Fortitude save).

Reset The bells cease ringing if there are no living creatures within 30 feet.

Pathfinder #147: Tomorrow Must BurnOGL