Discord has been sick for a long time. It's getting worse by the day. Equestrian medicine can't help him. He can't heal himself.

There is one hope: The fruit of a tree from his birthplace, the Garden of Elysium. Fluttershy takes it upon herself to make the journey with him, dangerous though it may be. On top of that, two young stowaways have joined the party. Pumpkin Cake is prepared to do anything to help Discord, and Pound Cake is frantically scrambling to keep his twin sister safe.

Monstrosities await them as they find that not everybody in Equestria wants to see the Spirit of Chaos well. Fairies, immortals, and ponies converge on Elysium, each with their own plans.

In the end, it will take courage to find the cure. But holding it together becomes more difficult as Discord continues to fall apart.