The fatal error

I think I have failed to thank my proof-reader, SystemFail. Without him this story would not look so good.

Twilight Sparkle was waiting, reading to pass the time. She had been waiting for an hour, hoping that a knocking on her door would come soon, and then she heard it. Knock knock knock. Twilight ran towards the door, "Coming!" The door was surrounded with Twilight's magic; then it flew open. Princess Luna was at the other side of the door. Twilight was expecting to see her, so she bowed then welcomed Luna in, "Please, princess, come in."'

"Ah, thank you, Twilight Sparkle. It has been to long since we- I have been here to visit this wonderful town."

Twilight didn't know how to respond to that, "Shall we get started, Princess?"

"Please, there is no need for such formality, Twilight Sparkle. Luna will do just fine. Yes, let's get started."

"Alright Prin- Luna." Luna followed Twilight downstairs into the basement where Twilight usually practiced her spells. Since Twilight had moved to Ponyville, she had created at least twenty spells. One of them included the enchantment she put on the room to stop any magic from entering or leaving it, in case something catastrophic happened. Well, she didn't technically create it, but it was altered heavily. Luna and Twilight got to work.

***

Rainbow lay on her bed in the hospital room, bored out of her mind. She only had to be in that room for another 20 hours. It was getting late and Rainbow thought she should probably get some sleep. Just when she decided she was going to get to sleep early, she heard a familiar voice from outside the room, "Rainbow, can Ah come in?"

Rainbow was surprised to hear this, especially since it had been nearly a month and she hadn't seen her, "Come in, Applejack."

The door slowly creaked open and a blonde maned earth pony walked in, wearing her stetson hat, "Ah'm sorry Ah haven't come in to visit ya Rainbow, It's jus', well ah didn't want to face the truth. Ah couldn't bear to lose another pony close to me."

"It's alright Apples, but you should have seen me earlier."

"Ah know, and ah'm sorry, will ya ever forgive me?"

Rainbow thought for a minute, and she had an idea..."No."

Applejack was somewhat shocked and she lifted her head up to look at Rainbow, "We-" She started to talk but Rainbow cut her off, "Unless, you stay here with me and find someway to keep me entertained." A devious grin formed on Rainbow's face. Applejack, after getting her thoughts together, grinned as well, and the two ponies talked. And talked. And talked.

***

Twilight and Luna had worked early into the morning, trying to create the spell to turn Dash into a unicorn. Luna explained how it would work, and among the things she said, a few things caught her interest. Luna had said that, since Rainbow Dash hadn't been born as a unicorn, it would not, in any way at all, affect her magical ability. Most unicorns were only able to learn spells that helped them with their talents, but Dash would not be affected by this limitation, thus meaning she can become as powerful as any other unicorn. She also said that if the spell succeeded, she would personally teach Rainbow Dash about magic, and help her master it. Of course Twilight would help a lot too, being her marefriend and all.

Once Luna was sure that Twilight understood everything, including the dangers of the spell, she said, "Twilight, do you understand everything I have taught you about this spell?" Twilight nodded and Luna continued, "Good. Now, I would like you to try it on me." After she said that, she casted a few spells on herself.

Twilight was shocked at what she said, her jaw dropped open and she stumbled back, "But Prin-"

Luna chuckled and responded, "Do not worry, child. The spell will only last an hour, at most. It will most likely only last for a few minutes. I assure you, I am in no danger." Luna cast a spell on herself that was sort of like a checkpoint, allowing her to revert to her old form without the use of magic, so if anything did go wrong she can easily fix it in the blink of an eye.

Twilight wasn't convinced, "B-but what if something goes wrong?"

"Twilight Sparkle, I assure you that no matter what happens, it can be fixed within seconds. Do not worry."

Twilight still wasn't convinced, but she responded anyway, "Alright... if you say so."

Twilight's horn glowed, it's magical aura was not the same color as it normally was. It lit a darker purple, glowing fiercely in the dark room. The magical aura surrounded Princess Luna, and a ball of pure black floated out of Twilight's horn and slowly towards the princess. The second the ball of pure dark energy touched the Princess, the room seemed to explode into various shades of blue. Seconds after that, the only thing Twilight Sparkle saw, was pitch black.

***

It was about noon when Twilight woke up. She slowly opened her eyes and she looked around. She was in her room, in her bed, specifically. She had a terrible headache as she tried to recall what had happened. She fought back the pain and tried to remember, but to no avail. Twilight sat up in the bed, and this is when Luna said, "Ah, Twilight, you are finally awake."

Twilight was stunned, she wondered why the Princess was in her bedroom. Upon seeing Princess Luna, she tried to stumble out of bed, only to be held in place by a dark blue magical aura, "Please Twilight, you need rest after what happened."

Still confused, Twilight asked, "Princess, w-what happened?"

Luna was a little confused by her question, but she answered, "You did it. The spell worked, but it seemed to phase you quite a bit. It did no damage to you, you just weren't ready for the magical strain it put on you."

It was starting to come back to Twilight. She waited a few more seconds before it finally hit her, "Oh! It worked? That's so awesome!" Twilight broke composure there, and wondering why she said "That's so awesome" She decided Dash was finally rubbing off on her, which wasn't necessarily a bad thing.

Princess Luna chuckled and told Twilight, "Yes it is, Twilight. You may use that spell whenever you wish, and if you master it even more, you may do absolutely anything with that spell. I give you full permission to use that spell for whatever needs, if the one you are using it on agrees to it."

Twilight was very pleased, "Thank you Princ- Luna."

***

Four hours. Rainbow Dash only had Four hours left of complete boredom. Absolute and pure boredom. Just when she thought things would never get better, she heard the door creak open, and as soon as she saw the first leg of the mystery pony, her eyes widened to impossible limits, almost exploding. Out of every pony it could have been that came and visited her, it was her. It was-

***

BAM. Cliffhanger. Deal with it <3. This time it didn't take me 9 days! It only took me 2 or 3. or 4. I'll try to get the next one out soon, and I'm going to say now that this story will not go much farther past the part were Rainbow gets out of the hospital and Adopts scoots/gets turned into a unicorn. That stuff will probably happen during the sequel, but you'll only know when that comes out if you watch my suspicious moves very, very carefully.