The Happening

When it's another cloudy day in Equestria, everypony around the land are committing suicide for no reason and the creatures of the land are suddenly missing. Nopony knows how it happened or why it's happening. They only know that it's coming from dark magic, and it's up to Twilight Sparkle, Fluttershy, Spike, and Discord to find out before time runs out for them to save Equestria.