Worst Nightmare (Su)
Each time a living creature first views a specific dream larva from a distance of 30 feet or less (or from a scrying effect), the subject sees the image of the most fearsome creature imaginable. This is not an illusion or phantasm; the dream larva truly becomes, for just that instant, the subject’s worst nightmare. Even if simultaneously viewed by dozens of different creatures, the dream larva appears differently to each one of them. Creatures immune to fear or mind-affecting effects (or warded by protection from evil or death ward spells) are immune to worst nightmare; all others
must make a Will save (DC 43) or die from the supernatural horror revealed. Survivors (and those resurrected) are immune to the effect from that individual dream larva in the future. The DC is Charisma-based.