Searching for someplace to host her album release party, Vinyl Scratch drags Octavia to an abandoned psychiatric hospital. Rumored to once hold Nightmare Moon, it seems something dark has taken up residence... And it has no plans to let them go.
Bored out of his mind during the Summer Sun Celebration preparations, Discord decides to chase some interesting rumors about the Element of Laughter. What he gets is Hoofball, some interested compatriots, and a rivalry with Shining Armor.
An atypical brony finds a letter in the forest which transports him into Equestria. Dark forces are brewing, and for some reason, Paul is the only one who can stop them...