Casting Bones - same as that used by witch doctors.
This powerful magic item was created to augment Alienists, a prestige class in the Tome and Blood.
Circlet of Amplus Ater Iris meaning “Circlet of The Great Dark Messenger” (Amplus - great, important; Ater - dark, malicious; Iris - messenger of the gods. Thought by some to mean Nyarlathotep)
Every now and again, the region encounters a dense blue fog. Every now and again, things disappear into the fog never to be seen again and things appear out of it from other places or world. It seems the fog is the material form of some minor diety charged with moving things around the universe to balance cosmic forces.