Description
The glass of this triangular prism is specially tuned to see into the Astral Veil. When you look through the prism, out of phase or extradimensional objects or creatures are revealed in an area of effect equal to the strength of the item: 1) a personal space, 2) a melee space, 3) an encounter space. The prism cannot see through illusions and will not reveal things hidden by illusory magic. Scanning the area takes a number of rounds of scrutiny equal to the items strength.