You make an area (up to a 100-foot Cube) magically secure (24 hours). Creatures outside cannot see in via magic. Sound cannot pass through the barrier. Divination spells cannot target creatures inside. Teleportation into or out of the area is blocked. The spell can be made permanent with 365 days of casting. Higher Slot: +100-foot Cube per slot above 4.

Material: a thin sheet of lead, a piece of opaque glass, a wad of cotton or cloth, and powdered chrysolite