Later,At The School of Friendship

"Ok.I left you my lesson plan,all my student files and my annotated syllabus notes." Twilight said "If anything goes wrong, get Celestia."

"Got it!" Starlight replied.

"Maybe I should just close the school and send my students home." Twilight said nervously walking to the school.

"Don't worry,Twilight. I'll keep the students safe." Starlight stopped Twilight.

"I'm sure you'll be an excellent temporary headmare, Starlight" Cozy Glow said.

"Plus, she'll have you to help her."Twilight added.

"Oh,golly,yes! I promise I'll be the best assistant ever!"Cozy said.

Starlight smiled at Cozy then turned towards Twilight.

"Would you go save Equestria already?" Starlight said .

"Okay.Cozy packed us all up for a trip to bad guy central ." Spike said.

"Don't forget the sandwiches.I marked whose is whose,just in case." Cozy Glow replied .

"That is do sweet of you,Cozy!" Starlight said.

"If you want we can start working on your subsitute headmare plans right now." Cozy said.

"Okay." Starilght replied. Cozy, Starlight and The Mane 5 walk away leaving Twilight and Spike behind.

"See? Nothing to worry about."Twilight said "Tell me there is nothing to worry about."

Spike sighs in exasperation.

The next morning ,at the School of Friendship Cozy Glow was flying through the coridors, looking very stressed until she bumped into a cyan unicorn filly named Clear Sky.

"Oh hey Clear Sky, nice to see you but I'm in a bit of a hurry." Cozy Glow said in a worried tone.

"This will only take a minute I got this letter from Starlight Glimmer." Clear Sky said using her magic to give the letter to Cozy Glow.

Cozy Glow was shocked at what she read "She left me in charge, that's odd."

Clear Sky then looked shocked as well "I know but I know you'll do great Cozy Glow."

"Thanks Clear Sky." Cozy Glow said before the two parted ways.

2 hours later, Cozy Glow was addressing the students of the School of Friendship.

"Good morning, friendship students! We all know that Professor Sparkle left Starlight Glimmer in charge so I'm sure most of you were shocked when you couldn't see her anywhere. I was shocked too until I received a letter from Starlight addressed to me two hours ago." Cozy said before reading the letter out loud to everyone. "I have to go Twilight needs my help I know the school is in good hands with you Cozy."

"Why'd she change her mind, why did Starlight leave now instead of saying goodbye to us, it seems strange." Smolder asked suspicious of the whole thing.

"She probably left in a hurry." Cozy Glow guessed.

"I guess that makes sense." Sandbar pondered.

"Besides you all are such good friends. And I'm grateful because it will be awfully hard running a whole school alone." Cozy continued her speech " Can I count on each of you to help me? "

The students started cheering.
"Thank you so much!" Cozy Glow said "It's just like our professors taught us. Together, we can get through anything!"

Elsewhere,Twilight and her friends were traveling to Tartarus.

" I have had it with these horrible flies!" Rarity whined "I miss my magic! "

"Have you tried using your tail to shoo them away?" Twilight said.

"Bite your tongue!"Rarity said holding her tail "It's for decorative purposes only!"

"Hey!I didn't know we packed green cupcakes." Pinkie said.

"Um, we didn't."Fluttershy said. "They must've gone bad without magic to keep them cold."

" "Magic" this, "magic" that. We don't need magic to go on a little hike! " Rainbow Dash complained.

Then it started to rain.

" You were saying? " Rarity asked her.

" You just need to think more like Earth ponies, y'all."Applejack said "Granny's "Apple Core No-Bite-No-More"! That'll keep the flies off."

Everyone put on some of the apple fat in disgust.

"Ugh!"Pinkie Pie said "It smells just like it looks!"

"Even if our food's spoiled, these blueberries are still good to eat." Fluttershy said.

"Too bad we can't do anything about the rainstorm." Spike said.

"I can't stop that storm by myself, but I can still help!" Rainbow Dash said.Then,she brought down some clouds to shelter them.

"I think we have all the magic we need right here." Twilight said "Not that I don't want to get it back. Heh, Let's go!"

Author's Notes:

So who do you think the villain is?