Create Anti-Corpse Dust

This spell is a last-ditch effort of holy men and common folk to protect themselves from an undead scourge. It creates a barrier up to 100ft in general coverage that corporeal undead cannot pass. 

This spell is not class-locked. Any humanoid able to learn and obtain the components can cast it. The spell can be learned from a spellbook, a teacher versed in the spell, or from a deity. Common people learn this spell in desperation and in fear of undead attacks.