Mage Stone

The Mage Stone is a magical object that was last seen with Tauren. It gives the holder the power of transformation, and when we see it (To Kill the King) it is used for alchemy. It is clear that it holds very powerful magic, as Merlin is woken or disturbed by it when it is not contained.

Where the stone is now is unknown, as it was last seen with Tauren, who is now dead.