Kingdom Key

"Ok girls! Today, We are visiting Castle of the Royal Pony Sisters! Luckily, Rainbow Dash, and Fluttershy, have gotten us all here safely!"
"Miss Cherilee, How come we don't have, You know, Safety Partners?" Uttered Diamond Tiara, as She shivered in fear.
"Good Point Diamond Tiara! Now I'll assign you a Chaperone, and you'll go explore the castle with them! Rainbow Dash, You can have Sweetie Belle, Scootaloo, and Applebloom. Fluttershy, You'll have Snips, Snails, and Twist. I'll take the rest.".
The ponies split up inside the castle.
"Rainbow, Have 'ya ever been in this castle before?" Asked Apple Bloom.
"Yep! Me and the others were here when we defeated Night Mare Moon!".
"WOW! You defeated Nightmare Moon?" Sweetie Belle screamed!
"SHH, Your going to make the castle collapse if your not quiet!" Rainbow Whispered.
The 4 Ponies came across a ominous Manhole. The Manhole read,"Est ubi nox dicetur lumen".
"Est ubi what?" Scootaloo said, Just as confused as everpony else.
"Where there's a Darkness, A light will be shown...." Said Rainbow-Dash.
Rainbow Dash opened the manhole and went down. The Three Foals followed. She walked down the pipes, The pipes were covered with Sewage, and the floor was covered in water. The 4 came across a small room where a light shown through a small window. The Light revealed a Pedestal with 3 Blades wedged into stone. Rainbow Dash walked torward the Swords, As if they were in a Trance.
"Rainbow? 'Ya feeling 'alright?" Applebloom asked the Cyan Pony.
Rainbow Dash didn't respond, She then uttered the word, "Ventus". The blades rose, they Flared with a light of Color, The three colors of The Cutiemark Crusaders's Mane's. Then the blades flew to the Three Foals, Sure of their certain deaths, The three screamed. Before the blades were able to touch them A black robed figure jumped down from the wall, It caught the blades and dropped them on the ground.
"Who-who are you?" Asked Scootaloo.
"My name.. Is Roxas" Said the robed figure as he pulled down his hood.
Rainbow Dash bowed to Roxas, As if she was a Knave under his service.
"Has Xemnas provided with a mission?" She asked.
"No actually, you are relived of Your Duties Rainbow Dash." Roxas said to her.
He jabbed Rainbow in the chest, giving her a heart.
Rainbow Dash fell to the ground, She looked back up at Roxas.
"V--Ventus?"
"No, Rainbow Dash, My name is Roxas." He responded.
"Wh- Where's Ventus? What did you do to him?".
"Don't worry, I'll explain everything". He responded to Rainbow Dash.
"Wait Wait Wait, Who the heck are you? Why is Rainbow Dash all messed up now?".
"The Rainbow Dash you know, was a nobody. Her heart was lost in what is known as 'The Keyblade War'. She served under Ventus as his companion. When Vantias invaded Ventus's body, Rainbow Dash lost her heart. Her body was plunged into an array of Darkness. I happened to have stumbeled upon her heart while inside of Kingdom Hearts. I found her Nobody outside of Twilight Town, I Gave her the name Fire, and she Joined Organization XII. She had carried out missions, Her final mission was to join your world. We turned her into your native speices, or her original form, Wiped her memory, and sent her to this World, She had preformed many great feats, The Sonic Rainboom, Defeating Discord, and Nightmare Moon. Once she saw the words, Est ubi nox dicetur lumen, Her motives were restored, She would have been a threat to this world if i had not given her her heart back.".
"Wow, So my idol, never existed?" Said Scootaloo.
"Correct, Scootaloo. The form you know of, Wasn't an actual being, This may be hard Rainbow, but i need you to understand, We need to get your Keyblade back. First i'll need to give you your memories.. Are you ready?"
"Yes, Roxas..".
Roxas touched his hand to her head, she recived all her memories of her time in Ponyville, She saw the time she Preformed the Sonic Rainboom, When she crashed into Twilight Sparkle, When she tried to get the Daring Do book, When she saved Rarity and The Wonderbolts.
A tear came to Rainbow Dashes eye.
"Th-Thank you.. Roxas" She said.
"Now for you three... The blades you have found, They have chosen you, and now, They are yours",