When the notorious dream demon Bill Cipher invoked the name of the Axolotl his last-ditch attempt to save himself from facing the punishment for his many, many crimes, he didn't know what would happen afterward. The last thing he expected, however, was to be bound in human form, trapped in a magical land of two-legged talking horses, and, despite retaining a fair portion of his powers, unable to leave said dimension. However, when the Elements of Harmony accidentally release him from the magical artifact that he was trapped within, that's exactly what happens. Quickly setting up shop in Ponyville by raising his Fearamid over the ruins of the Golden Oaks Library, Bill Cipher begins searching for a way to restore his full power in order to escape this dimension and wreak havoc upon Gravity Falls once more. However, Bill quickly finds himself dealing with several complications with his plans caused by an old rival of his from the dimension he once called home. Striking a bargain with the Mane 6, Bill finds himself fighting alongside the Elements of Harmony, and his long-lost baby brother Discord against the demonic henchmen of Will Crytogram. Will Bill stay loyal to the Mane 6 or will the world fall to an even worse Weirdmageddon than the one Gravity Falls experienced? Will Equestria still be in one piece after all of this is over? Will Discord and Bill reconcile after all this time? Will I find my house keys?

One thing's for sure: it's gonna get weird.