From Pathfinder #183: Field of Maidens, which isn't enabled.

Benefactor's End

HAZARD 9

Stealth +20 (expert)

Description A spectral assailant drives a stake into a dying vampire's heart; the vampire collapses and releases a surge of void energy.

Disable DC 28 Religion (expert) to drain away the haunt's void energy

Death Throes

Trigger A creature touches the vampire's corpse

Effect A surge of void energy fills the room as the corpse lurches as though staked. The haunt deals 10d8 void damage to creatures within 30 feet of the corpse; this damage heals undead creatures for the same amount. Living creatures must attempt a DC 30 Will save.

Critical Success The creature is unaffected.

Success The creature takes half damage and becomes Drained 1. This drained condition is reduced by 1 after 10 minutes.

Failure The creature takes full damage and becomes drained 1.

Critical Failure The creature takes double damage and is Drained 2.

Reset Unless disabled, the haunt materializes again on the next moonrise.

Pathfinder #183: Field of MaidensOGL