Fearful Knocker

Wondrous item, very rare

This heavy metallic disk is carved in fanciful or frightful likeness of a humanoid or monstrous face, with a heavy ring in its mouth. If attached to a door, it seals the door with an arcane lock and wards it with a phantom trap. The fearful knocker opens and closes the door by a command word. A creature touching the door without speaking the command word is affected as per the fear spell (DC 13). The fearful knocker cannot be removed from the door except by the command word, destroying the door, or temporarily negating its power with dispel magic.