Image imported from derpibooru 
Original Description:
 
(Cheerilee taking her students on a field trip in the “world-famous” Unicornia sculpture garden)
 
Cheerilee: I want to start our field trip here, in the world-famous Unicornia.a sculpture garden. That one over there represents “Friendship” *Point at the statue*
 
(The students looking at the Statue. and same to Little Marble, Apple Spritzer, and Mariposa. they bump into each other and glare)
 
Cheerilee: Alright, my dear little ponies! This one represents “Victory”
 
Little Marble: How cool would it be to have that for a special talent?
 
Apple Spritzer: Oh Cool… If you were actually victoryful at somethin’.
 
Mariposa: That’s not even a word!
 
Apple Spritzer: What are you, a dictionary?
 
Cheerilee: Girls! Now, this is a really interesting statue. What do you notice about it?
 
(The students and gangs looking at the creature Statue)
 
Little Marble: It’s got cat paws and a Cheshire grin!
 
Apple Spritzer: A Deer hooves!
 
Mariposa: And a rattlesnake tail!
 
Cheerilee: This very interesting creature is called a Cervus-Serpens. He has the head of a Deer and a body made up of all sorts of things. What do you suppose that represents?
 
Little Marble: Chaos!
 
Mariposa: Evil!
 
Apple Spritzer: Madness!
 
Little Marble: It’s not Madness, you idiot! It’s chaos!
 
Apple Spritzer: Don’t call me things I don’t know the meaning of! And it is too Madness!
 
Little Marble: No! It’s chaos!
 
Mariposa: You’re both wrongs!
 
(While the gangs fighting each other, Above them, a small circle on the Cervus-Serpens statue glows briefly. Then finally Cheerilee using her unicorn aura to stop them)
 
Cheerilee: Well Actually, in a way, you’re all right. This statue represents “Insania”, which means a spirit or group of spirits personifying insanity and absence of harmony between ponies.  
In fact, you three have demonstrated insania so well, that you’re each going to write me an essay explaining it.
 
(The students laughing at the gangs. while they are embarrassed)
 
Cheerilee: Now let’s go, and I don’t want any more fighting.
 
(Cheerilee and her students walk away from the Cervus-Serpens statue, while The gangs still arguing. the statue starting to crack and glowing red.)
 
Insania: *Evil Laughter*
 

 
(Surprise Fuchsia is flying above ponyville, then out of nowhere. A fast-moving pink cloud sends her spinning)
 
Surprise Fuchsia: what the? Come back here, you! Gotcha! Eww… what is this? *Lick* Cotton candy?
 
(Then the a lot of cloud of cotton candy flying by. and one thundering cloud is above of Surprise Fuchsia)
 
Surprise Fuchsia: Wait a second! It’s not supposed to rain until tomorrow! You can’t just– You did…
 
(The cloud of cotton candy raining on Surprise Fuchsia of chocolate. Cut to the Sweet apple acres. Sparkling Cider ripping off the corn cob. Then she hears Surprise yelling in the distance)
 
Surprise Fuchsia: Hey, I didn’t tell you to go anywhere!
 
Sparkling Cider: Surprise Fuchsia. what’s goin’ on with this rain? Wait, It’s that a chocolate milk rain?!
 
Surprise Fuchsia: There’s crazy weather all over Equestria! Skypolis is getting soaked by a major cola storm right now! But don’t worry. I’m not leaving you until I get control of Ponyville!
 
(After Surprise Fuchsia fly to the sky. the corn cob starting popping like a popcorn, everywhere. Then Twinkie Sprinkle enjoying this)
 
Twinkie Sprinkle: Why would you wanna stop this? *Slurp*
 
Iridescent: Ahem. I heard about your troubles, Sparkling Cider, and I came to see if there’s anything I can do without getting wet. Or dirty. Or out from under my umbrella.
 
(Iridescent and Sparkling Cider hears the wood creaking. Then they saw the apples got bigger and tree can’t hold them. The Animals start eating the apple. Ivory and Amaryllis arrives)
 
Ivory: What the hay going on here?!
 
Sparkling Cider: Um Amaryllis, Can you well um- do somethin’ with the animals, please?
 
Amaryllis: Now, You cute little bunnies. You guy mind not to really eat the- *Gasp* No! It’s not possible!
 
(The bunnies leg turn into the deer leg and hooves, a lot of bunny running by. And finally Ember is here with the spell book)
 
Ember: Here is it! *Giving to Amaryllis the book*
 
Amaryllis: Don’t worry, everpony. I’ve learned a new spell that’ll fix everything!
 
(Amaryllis cast the spell to reverse the strange changes to the weather and animals. A bright pink and butterfly band of magic sweeps the land, but nothing happens.)
 
Amaryllis: My fail-safe spell… failed! What do we do?!
 
Ember: Uh, give up?
 
Ivory: Ember, Amaryllis will come up with something.
 
Iridescent: Indeed. *Her aura grab the umbrella to giving to amaryllis*
 
Amaryllis: Hmm, time for plan B. Surprise, can you corral all those clouds in one corner of the sky? Ivory, I need you to bring those high-strung storm clouds down to Earth!
 
Twinkie Sprinkle: Hey, what happened?!
 
Amaryllis: *Act voice* Oh no. I hope none of the animals see these delicious chocolate-filled cotton candy clouds. I’d hate to have to share them.
 
(The animals hears what she said. They’re into eating the cotton candy clouds and popcorn instead of the apples. Twinkie is a part it too)
 
Twinkie Sprinkle: You and me both, sister! *She got push out the way* Hey!
 
Sparkling Cider: And when y’all are done with that, feel free to have some popcorn for dessert too!
 
Ivory: You see, Ember? You should never give up. There’s nothing we can’t overcome if we all work together.
 
(Not long after, Ember receives a letter from Empress Lunaria, Amaryllis reading the scroll)
 
Amaryllis: *gasp* Come on, girls. Empress Lunaria wants to see us all in Unicornia immediately!
 

 
(Cut to the Empress in a corridor lined with stained glass windows. walking side by side in nervous look, Then she hear the door open)
 
Amaryllis: Empress Lunaria we came as fast as we could!
 
Empress Lunaria: Thank you, My dear Amaryllis. Thank you, all
 
Amaryllis: Is this about the weather? And the animals’ weird behavior? What’s happening out there? Why isn’t my magic working? Is there–
 
(Empress silent her)
 
Empress Lunaria: Fellow me, I’ve called you here for a matter of great importance. It seems an old foe of mine, someone I thought I had defeated long ago, has returned. His name… is Insania.
 
Sparkling Cider: *squeal* *Running to the mane 5*
 
Empress Lunaria: Insania is the mischievous spirit of insanity and madness. Before my older sister and I stood up to him, he want to ruled Equestria in an eternal state of mad rage and unhappiness. Aurora and I saw how miserable life was for Earth ponies, Pegasus, and unicorns alike. So after discovering the Elements of Harmony, we combined our powers and rose up against him, turning him to stone!
 
Surprise Fuchsia: Alright, Empresses!
 
Empress Lunaria: I thought the spell we cast would keep him contained forever, but since My sister and I are no longer connected to the Elements, the spell has been broken.
 
Amaryllis: No longer connected?
 
Empress Lunaria: This is Unicornia Tower, where the Elements are kept inside since all of you recovered them. I need you to wield the Elements of Harmony once again and stop Insania before he thrusts all of Equestria into eternal madness!
 
 
Amaryllis: But why us? Why don’t you–
 
Twinkie Sprinkle: Hey, look! We’re famous! *Looking at the stained glass*
 
Empress Lunaria: You six showed the full potential of the Elements by harnessing the magic of your friendship to beat a mighty foe. Although Aurora and I once wielded the Elements. It is you who now control their power, and it is you who must defeat Insania!
 
Amaryllis: Empress Lunaria, you can count on–
 
Twinkie Sprinkle: Hold on a second! Eternal madness comes with chocolate rain, you guys. Chocolate rain!
 
Amaryllis: Don’t listen to her, Empress. We’d be honored to use the Elements of Harmony again.
 
(opens a unlocked door with her horn and with her spell And reveal the case)
 
Iridescent: Ooh. You can keep the Elements. I’ll take that case!
 
Empress Lunaria: Have no fear, ponies. I have total confidence that you will be able to defeat Insania with these!
 
(Empress take the case to reveal the elements to mane 6, but the Elements are missing from it. Mane 6 gasp and Lunaria drop the case to make a echoing sound)
 
Twinkie Sprinkle: Oh, well. If anyone needs me, I’ll be outside in the chocolate puddles with a giant swizzle straw!
 

 
Amaryllis: The Elements! They’re gone!
 
Empress Lunaria: That chamber is protected by a powerful spell that only I can break! This doesn’t make sense!
 
Insania: *Evil Laughter* Make sense? Oh, what fun is there in making sense?
 
Empress Lunaria: Insania! Where are you, Show yourself!
 
Insania: Did you miss me, My dear? *Purring* I missed you. It’s quite lonely being encased in stone, but you wouldn’t know that, would you, because I don’t turn ponies into stone. *Knocking the stone glass*
 
Empress Lunaria: Stop playing your game Insania! What have you done with the Elements of Harmony?
 
Insania: Nothing really, I just borrowed them for a teensy little while. *snap his paws*
 
Empress Lunaria: You’ll never get away with this!
 
Insania: Oh, I’d forgotten how grim you can be, My dear Lunaria. It’s really quite boring.
 
Surprise Fuchsia: Hey! Nopony insults the Empress!
 
(Surprise Fuchsia fly toward the glass wall, But she smacks her face on it)
 
Insania: I never get involved in politics till now, you must be Surprise Fuchsia, famed for her loyalty, the Element of Harmony you represent. if I recall correctly?
 
Surprise Fuchsia: That’s right! I’ll always be loyal to the Empress!
 
Insania: Hmm… We’ll see about that. *Purring*
 
Iridescent: I can’t believe we’re wasting our time talking to a tacky window.
 
Insania: The beautiful Iridescent! representing the element of generosity, if I’m not mistaken?
 
Ivory: So you know who we are, So what!
 
Insania: I surprised you show the element of Bravery from you, I know much more than you know, Ivory
 
Amaryllis: You seem to know our strengths too…
 
Insania: Why of course I do Amaryllis, and yours is the most powerful and elusive element, magic. And you showing some Empathy, Right sparkling Cider? and I love purple pony here that her name is Twinkie Sprinkle showing of Happiness! *laughing*
 
Amaryllis: Twinkie!
 
Twinkie Sprinkle: *Laughing* He’s standing on your head!
 
Empress Lunaria: Stop stalling, Insania! What have you done with the Elements of Harmony?!
 
Insania: Good heaven! why a rush my dear? You know this is so boring. Fine, I’ll tell you, but I’ll only tell you my way.
 
“To retrieve your missing Elements, just make sense of this change of events. Twists and turns are my master plan. Then find the Elements back where you began…”
 
*Echoing evil laughter*
 
Sparkling Cider: Can we go home now?
 
Ivory: What do you reckon he meant? Twists and turns and ended back where we started?
 
Amaryllis: Twists and turns… twists and turns… Looking out the window to see the maze twists and turns! That’s it! I bet Insania hid the Elements in the palace labyrinth!
 
Empress Lunaria: Good luck, my little ponies. The fate of Equestria is in your hooves.
 
Amaryllis: Thanks, Princess. We won’t let you down.
 
(The mane 6 bow down to empress lunaria, They running to the hallway to go the labyrinth. Then the echoing the laughter from Insania)