Fear of the moon

As Nightmare Agony lied there the gem on her necklace started glowing, then instantly multiple clouds of colored smoke flew out of it and flew out of the ld castle.

“No…stop…you fools.” Agony attempted to fight but she fell back to the ground. She lied their unable to move due to exaction, the younger Agony lowered the shield and ,returned back to her normal self.

“…What happened?” she asked.

“Agony!” Twilight raced towards her and hinged her.

“Twilight would you kindly tell us, who that is” Apple jack asked

“Right sorry. This is Agony.”

“And your hugging her why?”

“Well, you know what, I think now would be a good time to tell you. When I was she took my power, I was taken to a world that was lost years ago,”

“And what world would that be?” Rainbow Dash interrupted.

“Te black forest.”

“The black- How did you end up there?! I removed it from existence.”

“Princess, you did. But the gem in her necklace is inchanted to house all forgotten thing.”

“I’m still going to kill you all.” Nightmare Agony interrupted as she lied on the ground.

“While I was there, I met Agony, younger her, and she started telling me about all the stuff that hides in the forest and about the older her and the gem. The gem had a temporal lock on it,”

“First off, who cares? Second, a what?” Discord interrupted.

“The temporal lock can speed up or slow down the speed of time in sertant areas, while we were in there it was slowed down, so I was trapped in there for about ten hours. Anyway, I met her and we traveled together so we could get out, and we ended up bonding with each other, and before I knew it, she became family to me,” Agony smiled and hugged her, but the moment was broken as Nightmare Agony let lose a blood curdling scream as a black figure rose out of the gem on her necklace. It flew into the air and disappeared into thin air, then a second later the moon started moving revealing the sun. As they all started cheering Nightmare Agony started screaming again as she started changing back to normal. Her wings turned into ash along with the faded purple armor she was wearing, her screams died down after her wings changed. An hour later the moon was fully out of the sky, all the ponies were outside of the temple.

“It’s a beautiful day,” Celestia said to herself as she looked up to the sky.

“Mhmm.” Twilight agreed with her.

“I’ll kill you all!” Agony yelled as she lied bonded on the ground.

“Calm down Agony, at least I’m letting you live-“

“I’d rather burn in tartaros!” she interrupted.

“Agony, after what you did that would be an option, killing all those innocent ponies-“

“For the last time, they…are not…dead! They have to die on their own when I take their power!” Celestia turned away and rolled her eyes.

“Princess!” a royal guard yelled as he flew towards her. “Princess, are you ok? I’m sorry, I don’t know how but I ended up back at the castle.”

“Don’t worry I’m fine. Where are the others?”

“Back at the castle. Why?”

“I need you to go back and bring my carriage along with something to carry Agony in.”

“I demand to be killed instead-“

“Yes your majesty.” The guard then flew off.

“…Why most you torment me!?” Agony ranted, Celestia giggled.

“Princess, I need to ask you something.”

“What is it Twilight?”

“When I was in the forest with Agony, I made a few promises with her and one of them I thought would mean a lot to her.”

“What is it?” Twilight covered hid her mouth and Celestia leaned close and she started whispering something to her. She smiled and started walking over to the younger Agony.

“Agony?”

“Yes princess?”

“Twilight told me that she promised you a few things and I was thining that I should help you with them.”

“Really?”

“Of course, since she would be busy with her friends, I thought it would be best if I trained you with you magic.”

“Really?!” She started smiling.

“Yup, and for the other one I think it would be a good idea.” Celestia used her magic and lifted Agony into the air, there was a flash of light and a second later she was gently placed back on the ground. She looked at herself thinking something would be different.

“Nothing happened.”

“You sure about that? I’m pretty sure I see something different,”

“I’m pretty sure nothing happened.”

“Does that mean you always had wings?”

“Wings-?” Agony unfolded her new wings and stared at them. “I never had wings before.”

“Well, congratulations you do now, Princess Agony.” Agony smiled and started cheering, she then rushed over to Twilight and hugged her.

“Thank you so much Twilight!”

“Your welcome.”

“But, why did you make me a princess?”

“I made a promise remember? I’d see what I could do?” Agony smiled and continued hugging her. A few minutes later the royal guards returned with Celestia’s carriage and a cage.

“Alright Agony, say good bye to your friends, it’s time to go to the castle.”

“Wait, princess?”

“Yes?”

“If I go to the castle with you, will I ever be able to see my friends again?”

“Of course, they can visit any time they want.”

“Ok, by every pony.” She started racing towards the carriage. As Celestia sat down, Agony started flapping her wings to fly into it, a second later Luna joined them.

“Cadince, would you and shinning armor like a ride back to the crystal kingdom?”

“No thanks, we’ll take the train back.”

“Your choice. Guards don’t forget the mare.” She added as she point to the older Agony. They picked her up and carried her to the cage, the then threw her in, closed the steel bar gate and started caring her off to the castle.

“I swear I will kill you all! You will all suffer!” She yelled as she vanished into the distance.

“So discord, will you like a ride?”

“Nah, I’ve got to be somewhere in, uh, now I guess. Ta-Ta princesses!”

“He’s weird.” Agony said as she looked up to Celestia.”

“I know, I live with him.” Agony giggled.

“Good luck on the trip back to Pony-Ville.” Celestia said right before the Pegasus guards carried her off. The others waved goodbye to her then began their journey home.