Super Friendship Dungeon

A purple dragon with green frills approached a purple unicorn with wings, an alicorn, who was holding a potion in her magical grasp. "Twilight?" He asked, catching her attention. "The next shipment of books came in. Where should I put them?"

The alicorn, Twilight, grabbed the books in her magic after setting down the potion. "Thanks Spike." She looked them over before grabbing one and sending the others to their appropriate shelves. "I took care of that. Now." She looked down at the book she had kept in her grasp. "I've been waiting for this one. Celestia and Starswirl did lots of experiments with interdimensional travel, and now it's time I try."

Spike frowned. "Twilight, Celestia nearly destroyed both worlds when she did that. Don't you think its a bad idea?"

Twilight shook her head. "I've done the math. I can stay in the worlds for a maximum of 3 minutes and 47 seconds a day without messing with the balance. I think i'll be safe." She bent down and patted the dragon. "And you're welcome to come with me."

Spike smiled, eagerness all to evident on his face. Twilights own face mimicked it. However, a knock on the door interrupted it. Twilight stood up and went to open the door. In walked a white unicorn with a styled, purple mane. Spike's eyes instantly became little hearts, and Twilight giggled. "Hey, Rarity. Come in."

Rarity took a step in and looked about the slight mess of the room.

"Sorry about that..." Twilight said as she closed the door. "I've been working on a project for a while."

"What project?" Rarity asked as she straightened some papers.

"Well, tell me what you came here for first." Twilight said, giving Rarity a quizzical look.

Rarity stared in mock offense. "What? Can't a friend visit another?"

Twilight laughed. "I know, I'm kidding."

Rarity nodded. "I know. But there is one thing I needed, actually. Do you happen to have an extra pair of scissors anywhere? I can't seem to find mine and i need it to cut some fabric."

"Of course! Let me go get it." Twilight said, vanishing from the room in a teleport. Rarity turned to Spike. "So, what is her little project anyways, Spike?"

"Interdimensional Travel." Spike said. When Rarity gave him a quizzical look, he explained. "Remember how you went to that alternate universe where Sombra was good and Celestia and Luna were evil?"

Rarity nodded. "I don't know how anypony could forget THAT experience." Rarity said.

Spike continued. "Well, Twilight wants to find a way to safely travel between this world and other worlds without upsetting the balance. Shes going to start experimenting today. Wanna join us?"

Rarity smiled. "I'd love to! As long as Twilight's okay with it, of course. I don't want to get in her way."

At that moment, Twilight teleported back in and levitated some scissors to Rarity. "Here you go!" She said with a smile. "Now, about my project-"

"No need, darling. Spike explained it to me already. I'd like to join you in the tests, if that's alright."

"Of course! That would be great! In fact, lets get the rest of our friends! We can all do the tests together!"

Rarity frowned. "I dont know, darling. Applejack is watching the CMC as of now."

"They can come too." Twilight said, but she sounded a little less sure.

"Are you positive, darling? They do tend to be quite messy, even if they do have their cutie marks now."

Twilight shook her head and a smile appeared on her face once more. "Nah, they haven't been nearly as bad as they used to be. I think we should be fine. I'll get Fluttershy and Pinkie, you get Rainbow and Applejack."

"Alright, darling." Rarity said with a nod, walking out of the tree-like castle. Twilight spread her wings and followed her, taking flight and cruising to Fluttershy's house.

A few minutes later, nine ponies and a baby dragon gathered in the center of a large, open room.

"Okay, ready?" Twilight asked.

"Yee haw!" Applejack said, crossing her legs. "Lets do this!"

"I'm ready!" Rainbow Dash smirked.

"Umm... maybe?" Fluttershy whimpered.

"Ooooh, i'm so nervouscited!" Pinkie said with a bounce.

"Ready when you are, darling." Rarity said with a flip of her hair.

"Here we go!" Spike smiled.

Twilight nodded, glancing over at the three fillies in the corner of the room, watching with interest. "If we're not back in five minutes, go get Discord and have him get the princesses, okay?"

The girls nodded, smiling brightly. "We will. Promise." Sweetie Belle said, doing the pinkie promise motions. Her friends followed, finishing with all three of them poking a hoof in their eyes at the same time. As they rubbed their hurt eyes, Twilight turned back to her friends, "Here we go..."

Her horn light up a bright magenta, bathing the room in a soft glow. The glow increased in intensity, eventually making the area surrounding Twilight unbearable to look at. A small, purple and blue hole appeared above them, growing slowly in size. A strong wind began blowing in to it, as if something was sucking them in. Fluttershy held meekly on to Rainbow Dash as her mane blew through her face.

"T-Twi? Is this supposed to be happenin'?" Applejack shouted over the wind.

"I don't think so!" Twilight yelled back. "I must have overestimated the power i needed to put in to it! It's too strong!"

"Girls!" Rainbow yelled. "Get out of here and get Discord!"

The fillies nodded and tried to rush out, but a sudden burst of wind threw them up in to the air and in to the swirling mass above.

"Sweetie Belle!" Rarity shrieked, leaping into the vortex.

"Scoots!"

"Apple Bloom!"

The respective sisters leapt into the portal a moment after, and it began to waver.

"Rarity!" Spike yelled, leaping in after his crush.

"Girls!" Twilight shouted. "Come on, you two! We gotta go after them!"

Pinkie Pie lept into the vortex, doing a cannonball, while Fluttershy shrunk back. Twilight squinted her eyes, head hurting from the power she was pouring into the spell. "Fluttershy! The CMC need you! The girls need you! We have to go help!"

Fluttershy looked between Twilight and the vortex before standing and taking a small leap into the air. The wind did the rest, carrying her into the vortex and out of Twilight's sight. Twilight held up the spell for a moment longer before cutting off the magic. The wind stopped and everything was silent for a split second, in which Twilight leapt into the portal, before the vortex collapsed in on itself, creating a resounding boom that could be heard throughout Ponyville and possibly to Canterlot. The portal disappeared, leaving behind a small, glowing dot floating in the air, which disappeared a few seconds after, leaving no trace that anything had happened besides some papers left lying on the floor.