Twilight Sparkle loves three things: her family, her friends, and her kingdom. She would do anything for them, even give up her own magic. But what if she were replaced by a different Twilight? A Twilight who mind-controls her friends and family? A Twilight who brainwashes an entire nation for her own personal gain. A Twilight who cares more about power than the magic of friendship?

Midnight Sparkle has arrived. Given great power at sanity's expense, she sets out to conquer Equestria. This cannot end well.