Amulet of Bone Casting

This necklace is comprised of the bones of several creatures. Each bone is engraved with sigils and symbols of unknown design or intent. While wearing this necklace you may use an action to cast the spell Divination from it, seeking the guidance of an unknown entity. Immediately after using the necklace to cast this spell roll a charisma saving throw, DC 15. On a failure, you are forbidden from revealing anything about what the divination spell revealed to anyone. If you attempt to do so in any way, including verbally, written, or even sign language, you take 1d6 psychic damage, and are forced to lie about the information. On a success, you are not hampered from revealing this info. In either case, once you have cast divination from the amulet you cannot do so again until 13 days have passed.