Skull That Talks
From Multiversal Omnipedia
The Skull That Talks is a servant of Hissah Zul. He is a skull, as his name implies, who lives in a cauldron in Hissah Zul's workshop and is conjured up whenever the sorcerer drops a ruby into the water. Possessed of some psychic abilities, the Skull is used by Zul to know of Conan's activities and also offers his master advice on occasion, although he seems to have very little real respect for Zul.
