Twilight Sparkle has been a normal girl for most her life. But everything change on that one night. Seeing her parents kill in cold blood made her see that the world was not always black and white. She promise herself that she will end all crime in Canterlot. Years after her parents deaths, Twilight had learn to use both science and magic to make a powerful suit. A suit to help her fight crime. A suit to show criminals that magic and science can co-exist. A suit to mask Twilight to full her promise. She study the Science. She learn about Magic. She is Masked Matterhorn!

Now she has caught her greatest enemy, The Mane-iac. Taking her to a Asylum call Tartarus Asylum for the Insane or Tartarus Asylum for short. But the magic mare is suspicious. Mane-iac barely put up a fight when she caught her. It turns out her suspicions are correct when Mane-iac gets loose and takes control of the Tartarous Asylum. Now Masked Matterhorn must figure out what Mane-iac's planning and fend off his goons. But, what is "Titan?" Why did Mane-iac want to return here?

Based off of Batman: Arkham Asylum.