Dragon, referred to as Cat by Wren, is a female cat owned by Undauntable who appeared in Dragonslayer. She lives in the Indestructible City. Wren doesn't believe that Dragon should be called Dragon, as she acts nothing like one.
Dragon is somewhat lazy and does not scratch. She also acts gorgeously grumpy.
Dragon is seen with Undauntable almost every time Wren comes to the Indestructible City. She is referred to as "Cat" by Wren, who refuses to call her Dragon.