The Magic Skull is an item in ActRaiser.
Description[]
The Magic Skull is offered to the Master in Bloodpool, after bringing Teddy home with the Loaf of Bread. It's used to destroy a Red Demon Monster Lair that is inaccessible to the people, on the southwestern side of Bloodpool. The Angel will caution the Master against using the skull on any Monster Lair other than the intended one. Destroying this lair will purge the poison from Bloodpool, returning it to the natural blue color of water.