Octavia not only fearing for what's to come of her sister Pinkie Pie, and Bellamena, she also learns that the Mayor and his colleagues are a part of a foundation that is teeming with aggression that can cause reputative nightmares.
W-what," Pinkie swallowed nervously as she tried to speak, finding her throat was suddenly very dry. "Are you?" It seemed to stare at her for a few seconds, its dark eye sockets peering directly into her soul. "Death."
Strange occurrences have been happening in the old manor just outside of town. When a certain cyan pegasus and purple alicorn decide to find out what exactly is going on, they discover something that was a bit more than they bargained for.
The Mane Six are joined by three others in a quest to use the Elements of Harmony one last time, as a brewing war between Tartarus and the free creatures of the world threatens to destroy Equestria forever.
In a moment of existential confusion, Pinkie wants her friends to come hold a party with her. They can't make it. When she reschedules and they still fail her, Pinkie confronts them one by one.
Pinkie Pie has Passed away. After the funeral, the ponies of Ponyville put it upon themselves to bring a little party and laughter to their quiet town.