//------------------------------//
// Chapter 1 
// Story: A Nightmare Undercover 
// by ace122 
//------------------------------//

     The sun is risen, the new day has once again started and Celestia couldn't be happier. She took great pride in rising the sun every morning and the proud expression on her face surely showed it. She stood there on her balcony for a moment, looking at the brightly shinning star that was the sun and sighed. It was beautiful, absolutely beautiful. "What do you think Luna?" Celestia started. "Doesn't give off a wonderful reminder of your bright and glorious night?" Celestia asked her younger sister. Luna looked up at Celestia, then to the sun... for a moment her face stayed blank. She did not blink, she did not move at all. What was she thinking? "Luna...? Are you alright..?" Celestia asked and lightly tapped Luna. 
"Why it's perfect dear sister..." Luna quickly chimed. She shook off the dazed expression on her face and smiled warmly at the tall white alicorn in front of her. "It's completely perfect." Celestia smiled once more. Luna was happy, and so was she. Celestia was indeed proud of her sun, but she far prouder that her beloved sister Luna had returned. "Thank you sister. I cannot wait to see you raise the moon this evening. I'm pretty sure that's the only thing in the world that can match my sun." Celestia patted Luna gently on the back. Luna giggled. 
"Why I bet it is..." Luna retorted. 
"Princess...?" The two heard from behind them. Both alicorns looked to the doorway leading into the hall. There was a maid standing there with a shy expression. She coughed as if to clear the air. "Excuse me for interrupting, but miss Twilight is here to see you Princess." Celestia smiled kindly at the maid. 
"I'll be right there..." The maid bowed then continued out of the room. Celestia nestled Luna, then graceful walked out of the room; leaving Luna there all alone, with only the lone mirror that stood there. Luna giggled quietly to herself. "Oh yes... I love you dearly sister..." Luna whispered. "In fact... I love you to death." She giggled. Then stepped in front of the mirror and flipped her main. It was plain blue and cut short. She hated it. She couldn't how when morning came her beautifully flowing main turned into that of a normal earth pony's. She sighed... 
"Just what do you think you're doing!?" Luna's eyes widened. She turned to the mirror to see her own reflection the with sharp expression. She gazed into the mirror, puzzled and almost baffled. "Standing around thinking hateful thoughts about Celestia..." The reflection snapped. 
"I don't know what you mean..." Luna answered quietly. 
"You know exactly what I mean... I didn't send you back just to continue what you did before. That's what got use banished... I assume you remember." Luna sighed and rolled her eyes. 
"Relax... I'm completely aware of what happened centuries ago and I'm determined not to let that happen again." Luna stated. The reflection's face only grow more sour as Luna stood there calmly. 
"Listen Luna... I'm not going to let you ruin my chances this time. I promise if I see you mess up again... you're not getting easily. Remember I'm not just a part of you now, I am mostly your entire being." Luna stiffened a bit at the reflection's words. After a moment she nodded. 
"I understand." She bowed her head. 
"Good... now get back to work. I need you to find out as much information as you can on the elements of harmony, their holders and their origin as you can. Don't mess this up..." Luna nodded, just as she began to hear talking down in the hallway. The reflection blurred for a moment, the returned to it's normal state. Luna waved a hoof in front of the mirror and the reflection did as she did.
"Finally..." She sighed. "She'll stop nagging at me for a moment..." Luna whispered to herself as the door opened wide. Luna looked up to see the two ponies standing there and smiled warmly, trying to cover up any evidence of her previous conversation. 
"Princess Luna... who were you talking too?"