Six years ago, an unimaginable horror known as Tirek came to Equestria. His power was nigh impossible, requiring the Elements, the Lovers and the Alicorns all to pour their very souls into holding him. In their absence, Prince Blueblood took the crown. But, Blueblood's reign is simply a mask for the Guard's dictatorship, while rebels cling to the idea of a free republic and strange cults tout the value of freedom from any governance. With all this, why would anypony spare a thought for the comet that filled the night sky for weeks before falling?