Dumbledore doesn't reverse the trap he laid on the Mirror in time. The Mirror traps Harry and Voldemort outside of Time... and inside the MLP universe. MLPxHPMoR Crossover.
Twilight Sparkle failed her entrance exams for Celestia’s school. Worse, she is a danger to both herself and others, resulting in her magic being suppressed. Dreams crushed and now one of the weakest unicorns, a nightmare comes to her.
Ponyville is home to two alien observers. When a piece of advanced technology is stolen, the observers must do everything in their power to get it back—preferably before their superiors decide to blow up the planet.
Twilight and her friends knew each other from the start. Becoming heroes was unexpected, but welcome. Now that the wedding of Shining Armor draws near though, it's time to meet up with an old friend, and execute their true plan.
Visitors from beyond the stars was a scary idea...who knew that visiting Equestria could be just as scary for the visitors? A crossover with The Culture series by the late Iain M. Banks.