King Sombra, after witnessing the fall of Twilight Sparkle, manipulated her emotions to make her his apprentice. Over the years, Twilight's knowledge of dark magic excelled at an astounding rate. But with such power has a toll on the body. Her hair and tone colors lost their hue, her eyes began to glow of dark magic, her horn glowed red when using magic. The power of shadows was so great within her, she could match her power with the Elements of Harmony. No longer was she Twilight Sparkle. Instead, she was the Herald of Shadows...