| Level 10th | Casting Time 10 Minutes | Range/Area 1,600 meters, or 1 mile radius | Components V, S, M* |
| Duration 24 Hours | School Necromancy | Attack/Save Constitution | Damage/Effect Transformation |
As the name suggests, you cast this spell around a bonfire. The smoke from the bonfire mixes with rain clouds. The ensuing rain falls on the ground and causes all corpses to rise, even skeletal remains, as ghouls. Humanoids hit by the rain must succeed on a Constitution saving throw or contract a disease. This disease turns the humanoid into a ghoul that is starved and hungry for flesh after 24 hours. The caster is not safe from this rain. Curing this disease is only possible with the effect of a Heal spell or greater magic.
Undead created through the means of this spell are under the control of nobody, not even the caster.
(* A bonfire 10 ft. wide, made of bones of at least 20 humanoids, which are consumed in the casting, and on a rainy day.)