Somepony was knocking on the Ponyville library door. Twilight could tell it was important by the rhythm of the knocks. Three very fast and frantic knocks, over and over again.
She trotted to the door and used her magic to open it. In the door way, was a zebra, who seemed rather spooked.
"Zecora? What's wrong?" Twilight asked in a worried tone of voice.
Zecora trotted inside the library and turned to face Twilight. Fear could still be seen in her eyes. "A shadowy beast, has come to feast. Spooks a little one, just for the fun."
Twilight did not fully understand what she meant, but could tell it was not good. Just as twilight was about to ask for more details, a voice spoke from behind them.
"Twilight? I came to see if you could help my dear Muffin." Twilight turned to see a grey pegasus standing part way in the library.
"What's happened, Derpy? Is Muffin alright?" Twilight became even more worried.
Derpy looked like she was about to cry."She's fine. Just, she said th ... that someone ha...had come into her room. She was cry...crying under the covers this morning." She began to sob. Twilight tried to comfort her, giving or a hug.
Looking at Zecora, Twilight asked, "Did she say what this pony looked like?" She was feeling more uneasy as time passed.
Derpy calmed herself enough to answer. "She said, he was a sha...shadow creature. That he had bright green and re..red eyes and his voice was raspy an...and snake like."
Turning to Zecora, Twilight asked. "Is this the same thing that happened with you?" Zecora nodded slowly.
Derpy stood crying, she was extremely scared for her daughter. Her heart hurt with fear that the shadow pony, would come back. Knowing that Zecora had a similar experience, only made her more frightened.
"Please, Twilight." Derpy was begging, now. "Muffin is terrified, she didn't go to school today! Find this monster, please! Do something!" Derpy was screaming now, shocking Twilight and Zecora. "I am sorry for yelling. I am just worried for her. Do what you can."
Twilight nodded. "I'll do what I can, Derpy. I Pinkie promise."