I woke up back in the library.Then the voice spoke one sentence "You are mine." Then I fell.

Wonderbolts to the rescue!

I got  up woozily. Then I remembered that I was on a Rampage. I stalked outside, took one look at the daylight,and galloped back into the tree house. It was now completely black, covered with a black mist that turned everything dark and ominous-looking. It was nothing like the green, brown, and book covered library and 2nd house Twilight Sparkle owned. All the book in the library were now burning the darkest purple-black ever imaginable. If Twilight were here to see this, she would faint in surprise. I thought. Then, seeing it was nighttime, I flew, my huge wings propelling me forward at a speed that was incomprehensible for any Pegasi, Unicorn or Alicorn. I landed in Twilight's mother's house, and called forth a simple flame that burned the house, and parents. Then I continued through Ponyville. Next I flew to Pinkie Pie's bakery which was working overtime to fulfill the orders left since I had been turned into Nightmare Sparkle. I caught hold of Pinkie's mane and yanked it toward me. She gasped in surprise and looked at my new um...eyes. She asked in her now soft and hopeless voice, so different from the energetic and funny Pinkie from before, "Who are you?" Then she turned away and said, "Never mind, I can tell you are Nightmare Sparkle. Whatever you want to do to me, do it now, and do it quick." We began to glow the darkest silver imaginable, yet still with the small sprinkles of sparkles. A beautiful purple-black diamond surrounded Pinkie, and just as quickly disappeared. She was now dark, dark, magenta with the retina's and cornea's of a cats. She was dressed in armor like mine, and her element of harmony was clothed with purple, though still a necklace. She opened her mouth and said, "What do we do now?" I said, "Kill every pony in Ponyville and Canterlot." Pinkie spread her wings, and flew off.

Prolouge

I, spitfire, and my pal Soarin', flew through the skies of Equestria. Just then we noticed the slightest shift in the air temperature. It became, about, 1,000 degrees colder than normal. Our wings froze over, and franticly hoofing the air, we fell. A huge being, flew in front of us, and emitted a blast of cold, frigid air force us solid. She cast a spell over Soarin' and he became clothed in armor like the castle guard, and his eyes turned the same color as his hair,only darker. He flew off, and striked down another innocent pony. I called my mates, and together, we saved Soarin' from being corrupted by Nightmare any further.

The Alicorn Amulet

I flew towards Zecora's hut. She opened the door and took a look at me. Then she went to a locked cupboard and took out the alicorn amulet. She gave it to me, and in return, I gave her wings. She flew off. I clipped the alicorn amulet to me and immediatly the amulet became imprinted to me. It became a part of my chestplate armor, and the image of the amulet cloned itself to my hoofshoes and helmet, striking fear into the hearts of everyone I met. I hear a few whispers like, Where are the princess? and what are we going to do, she's got the alicorn amulet, it grants powers no one has seen before............. I laughed, seeing my work progress. they huddled into a group as I turned into smoke and drifted away. then they began planning how to kill me...