This golden band in the shape of a crown has two wings sporting from either side. At its center it has the insignia of the Order of Shadow & Thunder (The Tower OST)

It acts as a sending stone between the wearers of the twin crowns. It also allows the wearers of the twin crowns to know each other's location anywhere in the world.

It allows a wizard to cast three 4th level spells per day, two 5th level spells per day or one 6th level spell per day from the wizard spell list.