This piece holds necromantic magic that allows for astral travel into realms of the dead. You see that there are three pendants. The Stone is for protection. The anchor is to keep your body anchored in mortal realms so that you will always return, despite what you may experience during your astral journey. The skull is for guidance among the realms of the dead. There are a lot of forgotten powers to be acquired among these realms, not to mention very powerful beings. What you will do with this piece is focus on a particular power that you want and your guide will take you a ppace or a spirit that can grant it to you.