A New Power

   "Wait, so what yer' sayin' is that you want one of us gals to volunteer for a mind-control spell? I mean, we all believe it's possible... but what if it goes wrong?"

   Twilight's friends were worried by the thought that if they volunteered, the spell could go horribly wrong, and they could be under Twilight's control forever...

   "Don't worry, girls. Princess Celestia trusts me with this, and if she trusts me, then I'm sure you can too."

   Nopony said a word. Even if Celestia herself trusted Twilight, the spell could still go wrong. That would be a disaster.

   Finally, Rainbow Dash spoke.

   "I-I'll volunteer. For Twilight. I know it's risky...but I trust Twilight. She's the reason we still have a sun - she helped us defeat Nightmare Moon. She's the reason we're not being ruled over by Discord or Crysallis. Having saved Equestria 1...2...3...err... a lot of times...I'm going to voulounteer."

   "Oh, thank you so much, Rainbow Dash!" Twilight cried, her eyes sparkling. "This really means so much to me! Thank you! Thank you!"

   "Hey. I heard you the first time, Twi."

   "Sorry. Is there some time you'd like to have the spell done?"

   Rainbow Dash thought for a minute.

   "Well...I don't really mind doing it... Now..."

   "Are you sure?" Twilight asked. She herself was starting to feel just the slightest bit nervous.

   "Well..." Rainbow Dash then took a deep breath. "Yes. We can do it now."

   A couple of minutes later, Twilight had lead the other four ponies, Applejack, Pinkie Pie, Fluttershy and Rarity into a room where they couldn't be influenced by any of the magic.

   "It would have been dangerous to let you stay in there, anyway. My magic would have easily reached you, and I don't want to perform this on anypony who didn't want it to happen to them..."

   Twilight then returned to the room where she had left Rainbow, who was being her usual self, flying through the room and performing amazing tricks. Twilight knew that someday she would have to learn how to do some of those things.

   "Right, Rainbow Dash, just come over here. I've made sure everything is safe, and I've also been warming up my magic, so you'll be fine. Now just stand there and look at me..."

   Twilight then started to cast the spell. It used a lot of her power, but then she saw something in Rainbow's eyes. It was a reflection of her, except something was different. Very different. A pink ring was slowly becoming larger and larger in her eyes. Rainbow Dash was focusing on her eyes harder now.

   As the spell became stronger, more rings appeared in Princess Twilight's eyes, ranging from blue to pink to purple to red. Dash was literally staring into Twilight's eyes, and soon she was completely mesmerised by the spirals.

   Twilight felt like she needed to have a rest before she kept going, but as she looked away from the cyan Pegasus, Rainbow Dash screamed.

   "NO!!"