Legend says that a kingdom, said to be named the Solun kingdom, exists. A curse follows it, however, causing it's king to be forever a changeling, and live forever until he can find true love. Even still, ponies know it is just a legend. Right..?
Ponies all across Equestria are talking about the "new" disease spreading across all Equestrian races. Some think, however, that it is an old disease known only as the red disease. The problem is.. it is only explained through a single cave painting.