"There are ponies wanting to kill me? Why?"

"They believe that if you are dead, then Celestia and Luna will fall with you. Then they can take the throne. Ruling Equestria into war and death."

"Oh....my."

"And it is Rainbow's duty to protect you."

Twilight just nodded. Taking everything that her teacher and friend had just said.

"And she has also been protecting you a couple of years before your arrival in Ponyville."

"Wait! She's been watching me ever since?"

"You make it sound like I'm stalking you, but yes."

"What about the night where we defeated Nightmare Moon?"

"I was instructed by Celestia to keep a close eye on you. But then I became part of the event."

"One more question."

Rainbow groaned.
"Really?"

"How did you become an assassin?"

Rainbow looked up at Twilight.
"I..don't...really want to talk about it."

"Rainbow, I'm your friend. You can tell me. Does your family know you're an assassin?"

The pegasus attempted to speak but choked on her words. She just stood up and left the room. Limping, due to her wounded hoof.

"Is....she okay?"

"Twilight, my dearest student, you must understand. That you must not ask her about her past. Especially her family."

"Why?"

"The reason ponies become assasins, is because they have nothing else to live for. No family. No friends. No love. But instead of death, they choose to serve their land and protect innocents."

"So Rainbow choose to become an assassin?"

"Actually, no. Her parents were the original owners. But they were murdered. And her older brother was pony-napped."

"Oh dear."

"She was the last heir to lead The Creed. And so she trained hard. Now, she is Mistress of the Assassins, and highest level killer."

"Has she ever failed a mission?"

"You wouldn't be alive if she did."

"So...you are saying....that Rainbow Dash has been protecting me. No matter what. She risks her life for me?"

"That is why she is the Element of Loyalty."

~~~~~~

Twilight quickly trotted down the balcony. She heard a slight tapping. She turned around to investigate. Nothing there. She just shrugged it off, and carried on walking. She heard it again. But she ignored it. Twilight hopped into her room and slammed the door shut. Twilight sat on her bed and hovered over a book over. She flipped the book open to a folded page. Her eyes scanning the paper. The door slowly creaked open.Twilight smirked but kept her eyes on the book. The door shut, and hoof-steps echoed throughout the room.

"I was wondering where you went Rainbow. You kinda had me worried earlier. I hope you're not upset."

Silence burnt Twilight's ears.

"Oookaay. Creepy assassin. Rainbow, what are yo-" Twilight whipped her head around, and was met with somepony else's eyes.

They were fiery orange.

"Who...who are you?" Twilight croaked.

"Your worst nightmare."

The princess attempted to call out for help but was struck down by the pegsus stallion.

"Keep quiet if you value your pitiful life." The stallion lifted his bracer, which had the same symbol that Rainbow wore.

"Please. Don't hurt me."

"Oh shush. I'm going to let you in on a secret. Okay?"

Twilight nodded.

"Mistress Dashery is going to die. We're not after you anymore."

"Why?" She squeaked.

The pony shoved the bracer into Twilight's foreleg.

She tried to cry out, but her attacker stopped her.

"Assassins Creed is falling. Mistress will fall with it. She will die and so will you!" He lifted his bracer once more.

The lavender pony opened her eyes wide, bracing herself for the painful hit. But the pony stopped. He then coughed up blood, before falling to the floor.

"Rainbow!"

The hooded pegasus smiled as she helped her friend up.

~~~~~~

"Thank you Rainbow! Thank you so much!" Twilight hugged her friend.

"I am here to keep you safe. So that is what I will do."

"But how did you know?"

"We assasins, have a method of sharpening our sense. Especially our hearing. I walked past your door and heard you whimpering and a deep voice. I asked for the guards to come down and stand by the door, and I came in."

"What did happen to the guards?" Twilight looked towards her teacher.

"I don't know where my guards are. It was Luna's guards that Rainbow called down."

"Now, that is strange. Who was the pony that attacked me?"

Rainbow sighed.

"He was one of us. He was an assassin of the Creed. But he did not stay loyal towards it."

"I guess that's what he meant when he said Assassins Creed is falling."

"Yes. I hope that this war against us will end. I never liked the bloodshed of innocent ponies."

Feeling tired and sore, Twilight sat on rug opposite the fire, next to Rainbow.

"When are you going to tell the girls?"

"Never."

"But you have to."

"I can't. The more ponies that will know, the more I am putting at risk. And besides, what will they think? I kill ponies for Celestia sake!"

Twilight rested her hoof on Rainbow's shoulder.

"I'm sure they will understand. They will be surprised at first but they will support you. You kill ponies to protect the innocent. They love you Rainbow. And no matter what you do will not change their minds."

"Thank you Twilight."

"Your wel..." Twilight was unable to finish her sentence as she fell asleep hugging Rainbow. She felt safer if she was close to her colourful friend. Celestia smiled at the scene.

"It's okay Rainbow. You rest too. I'll keep watch." She soothed as she levitated Rainbow's bracers and weapons aside.

"Thank you, your highness." She whispered as she fell asleep next to Twilight. Feeling her warmth against her. "Good night, Twilight."

Author's Notes:

Just to let you know, there will not be any Twilight x Dash shipping. Twilight just feels safer around her.

More to come soon.

Will Rainbow tell the girls?

And who else will find out about Rainbow's mysterious life?

And will I shut up?!

NEVER!!!!