From Pathfinder Adventure: Malevolence, which isn't enabled.

Mouth of Tchekuth

HAZARD 6

Stealth +15

Description The chasm below shifts and ripples, transforming into a vast, gaping mouth filled with countless sharp fangs. A puckered, rasping tongue lances up from the noxious gulping depths below to lash and taste. Two words boom up from the vast throat below: "Iö Tchekuth!"

Disable DC 28 Occultism or DC 28 Religion (to exorcise the startling phantasm)

AC 24; Fort +17, Ref +11, Will +18

Hardness 14, HP 56 (BT 28); Immunities precision, critical hits; Weaknesses vitality 5

Hungry Tongue (emotion, fear, mental, occult)

Trigger a creature crosses the chasm

Effect A vast, fanged maw appears to open below, and a long rasping tongue lurches up to attack the triggering creature, who must attempt a DC 24 Will save.

Critical Success The creature realizes the haunt is a frightening phantasm that can't actually hurt them and is unharmed.

Success The creature dodges the rasping tongue but falls from the bridge as a result, taking 10 damage from the fall (the creature can Grab an Edge with a successful DC 24 Reflex save).

Failure For a brief moment, the creature feels the awful touch of the rasping tongue as it brushes against them, licking away memories and causing the creature to become Stupefied 1 for 24 hours. The creature then falls (as success above).

Critical Failure The creature feels the tongue wrap around them and then experiences the awfulness of being pulled downward for what seems like days, but in fact, only an instant passes. The creature becomes Stupefied 2 for 24 hours, during which time they can't remember their name. The creature also increases the value of their malevolence condition by 1 and then falls (as success above).

Reset The haunt resets after 24 hours and is destroyed permanently if Ioseff's ghost is put to rest.

Pathfinder Adventure: MalevolenceOGL