Shell Gem had been knocking on the door to her mother's room for around an hour.
"Shell, she's probably un-conscious," Thunder said. He had arrived earlier with Dawn and been told the news. As a leader, he did his best to cheer his team up (this was slightly easier with Calamity's help), but he was still sad himself.
"I can hear her breathing," Shell replied with a sigh.
"O...K?" Calamity blinked. Thunder Bright elbowed the Draconeqques in the side.
"Hey! I think she got up!" Crunch announced, putting his ear to the wall.
"Cool!" Calamity smiled, floating through the wall and into the other room. Crunch face-hoofed and pulled her back by the tail. "Ow!"
The stallion rolled his eyes, "You can't just... go in there!"
"Watch me," the Draconeqques replied crossly.
"Calamity, Crunch is right. Not yet, at least," Thunder nodded.
"I'll go in," Shell offered. No one objected as she walked through the door.

Thunder looked around nervously. It been a while... maybe too long, since Shell had gone into the room. Everyone else seemed just as frightened/unsure as he was. Finally, the door opened, and two mutant ponies came out.
"OH! SHE LOOKS DIFFERENT!" Calamity said loudly. Crunch gave her a glare of dis-approval.
I can still feel it. I've changed, but... they all love me, Rarity thought.
"Do you remember us?" Harmony asked eventually.
"Well... yes. I do," Rarity said. She was starting to get a better image of everyone in the room- her daughter, brother-in-laws, husband, and friends.
That statement was accompanied with awkward silence. Of course, there was only one pony who could possibly break it.
"REUNION PAAAAAAAAAAAARTY!" someone shouted. Suddenly, Pinkie Pie herself was standing in the middle of the room.
"Mrs. Pie... what are you doing here?" Thunder asked quizzically.
"Oh! Well, that's easy! Twilight gave me a cool potion (that tasted like raspberries!) and asked if I would drink it! And I did, so a giant black-and-white portal appeared over there-" she gestured over to the wall, "-and... oh, it tasted like raspberries, too! Anyways, I'm here to get you guys. Who're the new ponies?"
"Uh... Shell Gem, Dawn Sparkle, and... Rarity," the white Alicorn replied.
Pinkie Pie tackled the Tiger-Pony and pinned her to the ground. "You look different!" she smiled.
"Um... yes, Pinkie Pie, I do," Rarity replied, getting up and dusting off her coat.
"OK! C'mon, guys! The portal is getting smaller!" Pinkie said.
"Un secon', Pinkie," Crunch looked over to Shell.
"Are you coming with us?" Calamity asked hopefully.
"Well... I... my family is here, guys. I don't think-" Shell began.
"I know you want to stay here, Gem, but you can leave if you want," Rarity smiled.
"What!? Don't you want me to stay!?" the turtle-pony gasped.
"As much as we all do, it might be time for you to make a life of your own," Raph admitted. Shell gaped at him.
"Goodbye, Shell. Visit soon!" the tiger-pony waved as her daughter walked through the portal (she was also crying). And the Nightmare hasn't done anything since.
Well... not yet...

Thunder: Hi! My name is Thunder. Princess Celestia was busy, so here's my message...

Dear Audience,

In New York, I learned that you can always save someone you love- even if you think it's too late. True friendship won't disappear; it will stay no matter how invisible it seems. Like Dawn. Everyone thought she was entirely evil, but we helped turn her back, and Princess Dawn is in her room, talking with Mother. It feels like just yesterday we left to save both worlds, but that was a few Months ago.
When I look at Shell, she reminds me of everything we did there. ...Actually, I've been looking at her a lot lately... maybe I do have feelings for her. Something different then friendship.
But that's okay! Love is always just as great. Maybe the Nightmare will come back- but we'll still be here.
We are the Elements of Harmony, guardians of Equestria.
But the most important thing about us? We're friends.

Until next time,

Prince Thunder Bright.