And part 2. I pretty much just took the original idea I wrote and expanded it.

---

"And what a lovely night it is, to walk a moonlit field, to see the softer shades that are my starlight now revealed…" She twirled once as she walked, looking out at all of her kingdom, her favorite time of Night.

"So why is it that now, when all is quiet and at rest, when candles glow and all the world is at its very best, the people of Equestria should lock themselves away? To shun the Moon and wait instead for sister's sunny day…" She looked at the town, her subjects retiring indoors and locking themselves in for another night. Instead of calming her down, her singing only increased the pain.

"Am I so wrong to wish that they would see things like I do? And am I so wrong to think that they might love me too? Why shouldn't they adore me, is it not within my right? I'll not be overshadowed, mine is not the lesser light!" She started to walk faster, the balcony seeming longer than ever, her wings flapping faster, propelling her forwards.

"I've waited long enough now, for them all to come around, and though the Sun may plead and threaten, the Moon will stand her ground!" She soared upwards having reached the end of the balcony, her wings stretching to their full extent and flapping as hard as they could and yet all without making a sound.

"And all will know the wonder of my dark and jeweled sky, when all the world is wrapped in an eternal lullaby!" Her voice poured from her throat, so powerful it shook the tower as she landed, confidently walking to the base, and the small voice in her head was drowned out by her song.

Celestia, who had just finished lowering the Sun from her tower, glanced at Luna, frowning at how much her sister was glowing. "Luna?"

The Moon Princess raised her hands, her hair darkening even more to a shadowy mist, her eyes washed of their natural Cyan to a pale green.

"So say goodnight at this, the final setting of the Sun! Tomorrow Dawn's in Darkness, the Nighttime has begun!" Luna sang, the moon reaching its peak, her hands raised defiantly.

Celestia watched from her tower, shocked and surprised.

Luna turned around. "It appears that something has happened, dear sister. Did you really expect me to sit idly by while they all basked in your precious light!?"

"Luna, what has come over you?" Celestia said, flying over to her tower.

"There can be only one Princess in Equestria! And that Princess will be me!" Luna screamed at her sister.

"Would you upset the balance that we have strived to make, all to rule by yourself!?" Celestia asked.

"You have no idea what it is like, raising the Moon day and night, night and day, doing half the work, only for you to have all the affection. You are treated as the superior half, and all because you keep the Sun! I will not be shunned any longer!" Luna waved her hand, sending dark magic at her sister. "And if I have to fight you to ensure this, then so be it!"

"Please!" Celestia cried, barely deflecting it. Luna only advanced, sending magic in waves at her. Celestia took to the sky, hoping to gain leverage in her sister's domain, only to have the Dark Princess follow her.

"You cannot best me when I am at my strongest!" Luna yelled.

Celestia glanced down at the castle, a sudden thought popping into her head. The elements. She soared through the air, aiming for the castle while dodging her sister's magical attacks. She didn't want to hurt her and throw light back, but seeing no other way, she tried to throw ribbons of daylight at her, hoping to distract her long enough. Landing inside the castle, she ran to the throne room, where both the Sun and Moon thrones sat.

She waved her hand, opening a section of the floor, revealing the elements of harmony in a case that rested beneath the floorboards.

"Harmony will never defeat my beautiful Night!" Luna, now Nightmare Moon, screamed behind Celestia.

The Sun Princess whirled around, rising a few feet in the air. "Oh dear sister… I am sorry." A tear coursed down her cheek as she activated the elements, all six gems rising and floating around her, creating a circle of light. Nightmare tried to disband the gems, but they only glowed brighter, retaliating with their light. Celestia threw a beam at her sister, enveloping her.

"Forgive me," She whispered.

"Noooooo!" Nightmare cried as the elements power tore through the air with her, sending her flying through the sky and space, to land on the Moon itself. They then returned to the gems, all of them falling on the floor, to be replaced by Celestia.

The Princess landed back on the ground, her legs collapsing beneath her.

"What have I done…" She covered her face in her hands, tears streaming down her face, silently crying.