The Adventures of The Mysterious Mare Do-Well

Celestia's sun shined over Ponyville, Equestria. The citizens were going about their daily lives and doing it happily. One certain Pegasus pony, however, was not doing her job....... in fact she was napping on a cloud. She was blue with a rainbow colored mane and tail, her wings were cyan-coated and her cutie mark was a rainbow lightning bolt. Her name was Rainbow Dash, Fastest pony in all of Equestria. She was dreaming of being a part of the Wonderbolts after getting promoted from being a trainee. That dream however was interrupted by a very loud scream which woke her up immediately.

"What the....?" She went and flew to where the scream came from.

What she saw was a carriage going out of control and was about to plummet into a canyon. With quick reflexes she flew behind the carriage and used her strength to pull back real hard and as a result the carriage came to a stop.

"Phew....... Is everypony alright?" Dash asked.

"We're okay, Rainbow Dash. Thanks." The ponies in the carriage said.

"No need for thanks." The blue Pegasus said flying off.

She then got back to her cloud to take a nap again. But she couldn't sleep. The last time she saved somepony from danger was when she got carried away about being a hero and bragged all the time. Then she met somepony called The Mysterious Mare-Do-Well, which turned out was all of her friends tricking her into learning a lesson. Those thoughts to plague her mind as more and more ponies were in trouble all day: Carriages were going out of control, building were catching fire, the occasional cats stuck up trees and the Dam almost breaking that needed to be fixed.

After a whole day of saving the day Rainbow Dash was exhausted and went to her cloud home and got in bed to sleep. Yet even she couldn't sleep at night as thoughts and dreams of Ponyville in danger and evil ponies causing mayhem plagued her dreams and the more she dreamed the more nervous she became. Then she screamed,

"THAT'S IT!!!! I can't take it anymore. After all the danger in Ponyville today, this town needs a hero........"

Then a thought came to her head and she got a grin on her face.

"And I think I know who that hero should be."

Twilight Sparkle was sleeping peacefully in bed when suddenly rapid knocking came at her door and she was awoken in a flash.

"I'M COMING!!!" She shouted.

She mumbled incoherantly as she made her way downstairs.

Who could be here this time of the night? The library's closed. Twilight thought to herself as a lot of ponies knock on her door after closing time.

When she opened it her friend, Rainbow Dash, was there and she said,

"Can I come in?"

"Um....... Sure, I guess." The lavender unicorn agreed.

The blue Pegasus flew right in and Twilight closed the door,

"What are you doing here, Rainbow? The latest issue of Daring Doo doesn't arrive for weeks."

"...... Well.......... Did you notice that all day ponies were in trouble and disaster was in turn on every corner?" Dash asked.

"Yeah....... That was a crazy day. Almost like the day that you became brash in being a hero. It was also the day that me and our friends became The Mysterious Mare-Do-Well and taught you a lesson. So what brings you here?" Twilight asked.

".... I want to become a superhero again." The blue Pegasus said.

Twilight blinked a few times and then cleaned out her ears to see if what she heard was right.

"Did you forget what I said about you bragging about being a hero?" She asked.

"No I didn't........ It's just that I keep thinking about and dreaming about Ponyville in absolute terror and nopony protecting it. Being the Element of Loyalty I'm loyal to my town and want to make sure it's safe at night and day....... So I wanted my own Mare-Do-Well costume." Dash explained.

Twilight saw the look on her friend's face, it looked like she was truly worried and had determination in her eyes. She sighed and said,

"Alright. I'll ask Rarity in the morning to make another Mare-Do-Well costume."

"Thanks, Twi. You won't regret this." Dash said flying outside.

"I hope I don't." Twilight groaned and climbed back into bed.

"You want me to make Rainbow Dash a Mare-Do-Well costume?" Rarity asked confused.

"Yeah..... She's really worried about the safety of Ponyville after yesterdays crazy day of danger." Twilight said.

"I do agree, darling. Something should be done about all the danger......... Oh what the hay? What could go wrong?" The white fashionista asked.

Rarity then went to her sewing room and after six hours the costume was done.

"And now to send this to Dash." She said.

She put it in a box and sent it to the Post Office.

Rainbow Dash was making herself a daisy sandwich when a knock came at her door, she opened it and revealed it was Derpy Hooves, the Mail Pony.

"Hi, Dash. Got a package for you from your friend, Rarity." She said.

"Really? Um..... Thanks." Dash said grabbing the package.

"Gotta go. Got other packages to deliver, if I don't lose them first." The grey mail-pony said flying off on her route.

Dash brought the package to a table and thought to herself,

Wonder it could be. Probably one of her frilly dresses she wants to model for.

She finally opened the package and lifted it up to reveal the Mysterious Mare-Do-Well costume. She squealed in delight and went,

"WOOOO HOOOO! She actually made it."

She went to her changing room and put on the costume. She looked at her reflection through the mirror and smiled under the mask and tipped the hat.

"Time for the Mysterious Mare-Do-Well to make her grand return." She said.

Luna's moons shined over Ponyville and it was a stormy night. Everypony was asleep but on one of the tallest buildings in Ponyville one lone figure stood on top. Lightning flashed and the silhouette was revealed to be none other then The Mysterious Mare-Do-Well. But under the mask was none other then the Fastest flier in all of Equestria: Rainbow Miriam Dash. She peered over her city and under the mask she had a look of confidence on her face.

Time for the Masked Mare of Mystery to descend. She thought to herself.

She backed up a bit and took off flying throughout the town.

Yet underneath Ponyville, in a secret laboratory, Another masked pony was busy at work. He was wearing a black brim hat, as bird-like beak mask on the face with an overcoat that covered his body from front to back and black boots on the pony's hooves. He was looking through a crystal ball that showed Mare-Do-Well flying through the air.

"So...... The Mysterious Mare-Do-Well returns." The pony said.

He made the image on his crystal ball disappear and made his way to a machine he built and picked up a mechanical boot with syringes attached to the front. He put it on his right front hoof and put in the machine and started it up. Then a black liquid made it's way into the syringes and then he pulled it out. Under his mask he smiled evilly.

"If Mare-Do-Well has returned......... Then it's time for the Plague to return. Beware Ponyville, The Plague Doctor is making a house call." He said.

He then laughed evilly as he made his way to a tunnel that leads to the surface.