Origin of Solar flame

One day in Canterlot, the capital city of Equestria, a young unicorn filly named Twilight sparkle was trying to hatch a dragon egg as part of an entrance exam for Celestia's school of magic.

However, she was unable to until a explosion in the distance followed by a circular rainbow caused her magic to hatch the egg, releasing the baby dragon inside. It also caused her magic to go haywire, turning her parents into plants, the baby dragon into a giant, levitating the instructors, and summoning a filly with black bat-pony wings with white spots that ended with fiery colors , a brown coat, a green mane and tail with a blue stripe in both, rainbow eyes, and a snowy horn with a golden outline.

The Princess of Equestria, Princess Celestia, noticed the giant baby dragon from outside the building and went into the building in order to bring Twilight out of her magic trance. When she did, almost everything was returned to normal. Her parents, Night light and Twilight velvet, were turned back to ponies, the baby dragon was changed to his normal size, and the instructors stopped levitating. But the filly Twilight summoned remained in the room.

While Twilight was celebrating that she had gotten her cutie mark, the baby dragon crawled over to the filly and the filly took him in her hooves. Then Twilight noticed the two together and walked up to them.

"Hello" said Twilight

"H-h-hi." said the filly, now having the attention of everypony in the room. "Where am I?"

"Allow me to handle this, Twilight." Said Princess Celestia. "Greetings, young one. I am Princess Celestia, ruler of the kingdom of Equestria, which is where you are right now."

"E-equestria." said the filly. "I-I don't know where to go."

"You can come live with us, I've always wanted a sister." Said Twilight

"Are you sure?" Asked Princess Celestia.

"More than sure, Princess."

"Very well. As Princess of Equestria, I give full authority over"

"Spike and Solar flame, your majesty."

"Over Spike and Solar Flame to Twilight Sparkle and her family. Now, go celebrate."

"We will Princess. Spike, Solar, time to show you your new home." Said Twilight

Twilight, her parents, and her new siblings all walked from the castle to their home.

"Dad, could you wait outside with Spike and Solar? I want to surprise Shining with them."

"Sure Twilight."

Twilight and her mother walked inside their house just as Shining came around the corner from his room.

"Hey sis, how'd it go? Did you pass?"

"Yeah, I passed and got my cutie mark."

"Nice."

"But I also got a couple other things too. Dad, ready."

Night light walked into the house with Spike and Solar after hearing Twilight.

"Shining, this is our new brother Spike," Said Twilight, pointing to Spike, "And our new sister, Solar Flame." She said, pointing to the filly.

"Where in the world did the filly come from? The exam was to try and hatch a dragon egg."

"It's a long story."

"Tell me"

"Well, when I was trying to hatch Spike's egg, I almost couldn't do it. Then a explosion triggered my magic to go crazy, which caused, among other things, the filly to be summoned. That's the short version."

"Wow, That's crazy. She looks so cool."

"I know, and now she's our sister."

While Twilight and Shining were talking, Twilight Velvet showed Spike and Solar where their room, which was also Twilight's room.

This was just the beginning of a great adventure.