Luna snapped awake, "Just a dream," she trotted to a balcony and lowered the moon and stars. She felt an uneasy sensation pulse through her. Princess Celestia joined Luna on the balcony and raised the sun. Light covered the land.

More and more ponies began to wake enjoying the sunshine. Luna smiled faintly when a thought struck her, "Hey, how come no pony enjoys the night I bring? Calm yourself Luna. You know that the sun is there for a reason. Why is this though even in my mind?!"

Celestia took note of Luna's worried expression, "Luna, is something on your mind?"

"It's nothing. I am fine," Luna half-heartedly answered as she flew away.

"Luna..." Celestia followed Luna flapping her wings, "Luna! If there is something wrong, tell me! Please! We defeated Discord yesterday, and experience has seemed to left an impression on you!"

Celestia sighed hovering watching Luna, "What has gotten into you little sister..."

Luna scanned over the land. She did not want to face the problem now and scolded at herself, "Luna, pull yourself together. You have worried Celestia. We have just finished battling Discord like Celestia... said... when she shouted after me trying to help." Luna begun landing. A few tears dropped from her eyes.

Before she could come close to touching the ground, she started to fall, "What! This is not meant to happen is it?!" Luna found herself in a black cloud. SOme lightning crackled just to add some fear in the princess.

A mare walked up to Luna. The mare's mane flow with the image of the stars with a black coat with blue highlights, and wings became visible on her back, "Do you know who I am?" Before Luna could give the response, the mare continued, "I am you. Or rather the darker you. You will become Nightmare Moon. And turn against your sister!"

"What?!" Luna nearly kicked Nightmare Moon, "I will not turn on my sister!"

"Really?" Nightmare Moon paced around Luna, "what about that ever lasting feeling that no pony enjoying the night that you bring. Join me, and we have the purpose to bring forth eternal night! You will rule over Equestria!"

"NO!" Luna shrieked. She found herself opening her eyes and falling towards the earth, but Luna soon regained control over her flight, "What happened.?"

Luna walked among the citizens of the Kingdom her sister and her shared. The thought of her sister and her sun that all the ponies praised reentered her mind. The thought started to wonder into jealousy.

Luna could barely control this emotion thinking, "Celestia has all the attention. Wait, what am I thinking?! Did what Nightmare moon say seem correct?"