Okay, so here's a new chapter. I apologize for the shortness of the last chapter and I will try to make up for it by making this one longer than normal. Once again, I apologize. Also, I will probably be using normal POV for most of this. To make life simpler, I'm not going to type out Nightmare's full name unless I find it relevant. Also in response to one of the reviewers, this isn't Luna, this is Nightmare Moon. Also this is more of a friendship thing than a ship.

"This is Nightmare speaking in whatever language the nightmares' have"

'Night's thoughts'

This is nightmare speech

"Normal talking"

Nightmare woke up to the sun shining on her face. She growled and buried herself under the covers and away from the light that reminded her of Celestia. Once under the confines of her sheets she thought about the events earlier in the night and blushed furiously.

'What the heck was wrong with me?! I freaking begged him to stay! Begged! I probably looked like a wimp. Oh, he's going to tell the others and then they'll all laugh at me. Wait! He won't tell if he's not there. That's it, I'll lock him in a closet or something…*sigh* who am I kidding? Even if I somehow manage to get him into a closet, he will easily get out. What is wrong with me?'

Nightmare stretched before finally crawling out of her covers. She used her magic to change her pajamas, which were a T-shirt and pajama bottoms, to a dark blue hoodie with lined with black borders and embroidery and black pants made from a lightweight fabric from Equestria. The hoodie had an indigo nebula with a crescent moon in the middle, her cutie mark.

Then she shuffled into the main room of the guardians' lair. Everyone's head turned to her as they noticed her presence and fell silent.

North was the first to speak. "Good morning Luna. I would've thought you would still be in your room."

"I would be if someone hadn't totally destroyed my T.V. and computer by freezing their circuits." She answered glaring at Jack with a look of pure malice.

He gulped nervously and slowly started to back away. Nightmare turned towards him, her steely gaze keeping him trapped in place. Pitch chuckled lightly and everyone turned to look at him.

"How amusing, does she really terrify you that much Jack?" he asked. "I'm almost hurt that you find her scarier when it was and still is my job to be scary."

Jack turned red and Nightmare smirked at him evilly after glancing at Pitch for a moment longer.

"Um, what are you going to do?" he asked nervously, having noticed her look.

"Just…this!" she said jumping into the air. Pitch having noticed the look she had given him used his darkness to make her look even more terrifying.

She now had large fangs, blood red eyes, and large bat wings. Jack let out a blood curdling shriek as she landed on him and was pathetically cowering as she gazed deeply into his eyes with a look of insanity. Before the other guardians could reach them, Nightmare stood up laughing as the illusion fell away. She walked over to Pitch and high-fived him.

"Why did you do that?" Tooth asked angrily.

"Relax, it's called fun. Isn't Jack supposed to be the guardian of fun?"

"That wasn't funny!" she cried.

"Sure it was. What did you think Pitch?"

"I found that quite amusing."

"You're just being awful!"

"And you just love Jack, don't you?" Nightmare said making kissy noises as Pitch silently snickered.

"You two are horrible, inhuman monsters! You don't deserve to be guardians!"

Silence followed. Both had stopped laughing and were now staring at her with matching neutral expressions.

"Tooth, it's fine, I'm alright." Jack said walking up to her.

"No it's not; they were being awful to you."

"Well, I did ruin her stuff."

"It was an accident."

Jack didn't say anything and they all turned back to the two silent figures. Pitch looked mad, but Nightmare's face was unreadable.

"I know that I am a monster Tooth," he said spitting out her name. "But you may not call Luna that. She has done nothing wrong here except play a simple prank and nothing was harmed, except Jack's pride and ego maybe."

Tooth was about to say something when a soft, but clear voice stopped her.

"Stop," Everyone turned to Nightmare. Her head was tilted to where her hair covered her eyes. "That is enough."

When she looked up, the mischievous glint that had been in her eyes had been replaced by a cold hard glare. Everyone flinched even though the stare had been directed at Tooth.

"No one calls me a monster. No one." Her voice had become warped into her old Nightmare Moon voice and nightmare language. "You are nothing compared to me. I have power that you couldn't even begin to comprehend; of course, your brain is probably too small to comprehend anything other than your foolish child's play."

Pitch and Sandy were surprised at her usage of the nightmare language and quickly translated what she'd said to the others. They knew that she could be mean but this was way beyond that and her usage of nightmare language was troubling. Just then Pitch noticed a dark mist lazily floating around Nightmare in the background that no one else seemed to have noticed.

He snarled. She was being used by something. Pitch summoned his nightmares and they surrounded Night.

She grinned widely. "So this is the extent of your power. I must say I am somewhat impressed."

"Only somewhat? Well I guess we'll have to do better now won't we."

Although she snorted like she didn't care, on the inside Night was screaming.

'No! Stop! Don't make me fight them, please. I don't want to! Yes, most of them are horribly annoying but still!'

"Too bad," The nightmare said laughing. "You shouldn't have betrayed us. Now you are trapped within your own mind while I control you."

Tears sprung into her eyes as her kin left her trapped in her own mind.

'Please help me…'

Pitch and the nightmare controlling Nightmare Moon's body circled each other. Pitch lunged at it and it dodged, laughing.

"Is that the best you got? Pathetic!"

Pitch glared and sent several waves of darkness at it. It just absorbed the dark energy and Nightmare's body grew and mutated. Her blood-shot eyes turned red and all of her teeth sharpened to points.

The nightmare laughed manically.

"You can't stop me! Your energy only feeds me and makes me stronger! I am unstoppable! Ha ha ha ha!"

Pitch growled to himself. This was not Luna, he was sure of it. There was something controlling her.

But what? What could possibly control Luna?

At that moment, he had a flashback to the day he'd met her. She had smashed through the ceiling fighting a dark creature.

That's was probably it. If there was one, there was most likely more than that. That's why she was chosen to be the next guardian; she could defeat the creatures and they probably took her over for that reason.

'But how would one even be able to…? Of course! She had a nightmare last night, that's probably how… dream infiltration. This information doesn't help much though… If only I knew how to lure the creature out of her body. He thought.

"It would appear that your friend is failing." The nightmare chucked darkly.

'Stop, leave him alone. You have me, just be done with me and leave him alone please.'

"Aww is someone in love?" The nightmare mocked. "I wouldn't have expected you to experience this emotion. How sweet, I think I'll play with him a bit longer first, and then we figure out what your punishment for betraying the Forces should be."

The nightmare used the darkness to pick up the weakened Nightmare Moon and chained her to one of the various walls in her mind that shielded her thoughts.

"I'll be back for you later, Nightmare Princess." He said.

The nightmare turned its attention back to the battle at hand. Using Nightmare's magic, it pinned Pitch and the other guardians to the wall.

"I'd love to stay and duke it out a bit longer, but I have a job to do. Later."

And with those words the nightmare disappeared using Nightmare's body.

For anyone who was confused with the cutie mark description, Nightmare's cutie mark was an indigo nebula with a moon. Luna's was a black nebula with a moon. I understand if you are confused by the constant transition between Luna and Nightmare and if you didn't know which nightmare I was talking about. Luna and Nightmare are pretty much the same in this story and when I'm talking about Moon I will capitalize nightmare and if I remember I will try to cut back on the constant repetition of calling Night by Nightmare. Sorry and Review please!