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From Pathfinder #152: Legacy of the Lost God, which isn't enabled.

Ghost Crystal Cloud

HAZARD 8
Stealth +18 (trained)
Description The xulgath corpse splits open to release a cloud of tiny ectoplasmic crystals which, when they are inhaled, disorient and devitalize living creatures.

Disable DC 26 Arcana or DC 26 Occultism (expert) to render the crystal cloud inert

AC 27; Fort +17, Ref +13
HP 70 (BT 35); Immunities critical hits, precision

Ectoplasmic Explosion
Trigger A creature touches or disturbs the corpse containing the growth of crystals

Effect All creatures within 10 feet of the corpse are exposed to the ghost crystal cloud.
Ghost Crystal Cloud (poison)

Creatures with the ethereal trait are immune

Saving Throw DC 26 Fortitude
Maximum Duration 6 rounds
Stage 1 1d10 poison damage and Stupefied 1 (1 round)
Stage 2 2d10 poison damage and Stupefied 2 (1 round)
Stage 3 3d10 poison damage and Stupefied 3 (1 round)
Reset The crystals regrow into a number sufficient to form another dangerous cloud after 1 week.
Pathfinder #152: Legacy of the Lost GodOGL