This black glass yields no reflections when it is looked upon but emanates an eerie chill and telepathic whispers. When anyone looks into the mirror (including you), the mirror becomes activated and an ectoplasmic double emerges from the glass with the intent to do harm to them per the spell Ectoplasmic Double. This makes identifying the mirror difficult, as looking into it in order to ascertain its function activates the glass. When attempting to identify the mirror, make a Deft check at a TN 10 + the strength of the item to inspect the mirror safely. The ectoplasmic double that the mirror conjures persists unless the mirror is shattered or the double is magically dispelled.