Mysterious Key

This Stone Key is connected to a silver necklace
and weights very little. The Key's teeth transform according to your movements, they seem to never remain in a single position. While wearing the necklace with the Key attached, you feel comfort
and warmth.
- While wearing this Amulet, you have Resistance
to cold damage. In addition, you and everything
you wear and carry are unharmed by
temperatures as low as -50 degrees Fahrenheit.