Flameskull
A chaotic and malevolent entity lurking in Wave Echo Cave. The Flameskull reanimated a group of dwarven skeletons to fight against both the party and a group of mercenaries working for The Black Spider. It seemed to enjoy causing pain and fear, and once it felt cornered it self-destructed to bring its enemies down with it.
The Flameskull can regenerate itself unless the site of its demise is neutralized with holy water. The Party was able to substitute molten iron (from blessed ball bearings) in place of holy water to successfully suppress the Flameskull’s resurrection.