What should've been a relaxing day at Los Caballos beach turns into the adventure of a lifetime as visitors from another world try to prevent the return of the evil magma tyrant Lavan, who tried to conquer Equestria in the past. Can they succeed, despite the newcomers having no idea who or what Lavan is? AU taking elements from The Elements of Harmony and the Savior of Worlds.

Welcome to the Star Carnival… Wait, no… Welcome to the Royal Gathering, a wondrous event where one can mingle with the Princesses, get to know Canterlot, or catch up with fellow alumni from the days attending Celestia's School for Gifted Unicorns. For Princess Twilight, however, this will end up opening old wounds and remind her of a certain wedding. Nyx belongs to Pen Stroke.