The day was like any other: While Twilight Sparkle and her friends redecorated the new castle in Ponyville, Princess Celestia and Princess Luna invited Princess Cadence to their castle to discuss about Twilight's new role.

"I can't believe Twilight has her own castle!" Cadence spoke a bit excitedly, walking with the two other princesses.

"Yes, she did," Celestia spoke, acknowledging Cadence's excitement "and to think the Tree of harmony held a castle for her after finding the keys for that box it grew."

"I'm just glad she was able to stop Tirek," Luna spoke "otherwise that search would be for nothing."

"You need to trust Twilight sometimes, sister."

"And you need to plan ahead in case something like that happens again!"

"I have to agree with Luna on this," Cadence commented, scratching the back of her head, chucking nervously "you did put to much trust in Discord to stop Tirek."

"How was I suppose to know about that?" Celestia replied "I thought he was fully reformed thanks to Fluttershy."

"Yeah" Luna spoke to her sister "just like how I was 'reformed' immediately after I came back from being Nightmare Moon."

"You're my sister, so I expected that molting phase to take a while!"

"And how about the fact that you sent me to Ponyville with no knowledge on what has changed! I mean, I'm still trying to get used to those loud machines the ponies here call 'Trains'!"

"Hey! You were too excited to reintroduce yourself to listen to me!"

"Girls!" Cadence spoke, standing on her hind legs and using her forelegs to push the two back "Look, we just need to calm down and breath, okay? Remember, we were discussing about Twilight's new role as a princess, right?"

"...Right." The sisters spoke together  

"We know she's the Princess of Friendship, right?"

"...Yes."

"So she's going to have a huge role with us and the others, right?" At the mention of the 'others', Celestia's pupils shrunk as her eyes widened

"...The others!!!" Celestia yelled, running ahead. Luna and Cadence followed a panicking Celestia, running through the halls.

"You didn't tell them about Twilight!?!?!?" Luna asked, trying to keep up with Celestia

"I was too busy seeing her react as an Alicorn!!! Especially when her crown was taken away from Sunset Shimmer, when we were taken hostage by Discord's seeds, and, of course, LORD TIREK!!!"

"You two were taken hostage by some seeds Discord laid in the floor?" Cadence asked Luna.

"Hey!" Luna replied "At least I wasn't close to being devoured by a Tatzlwurm, after being tricked by Discord in need of some fake medicine!!!"

"I know, but... that was fun with Twilight, I must say."

Celestia ran to the door of her room and opened it wide, only to stop and freeze in mid action. Luna and Cadence caught their breath, but stopped to see Celestia nearly frozen in place. Curious, they looked around a corner and saw, inside, another Alicorn sitting & reading in Celestia's Diary. This Alicorn was male, as by the shape of his head & body, had a light blue coat all over his body with the tips of his hooves & wings were white, wore a single white upper body shirt with a brown satchel holding various scrolls, and he had on a helmet with wings to the side that matched his coat & tips of his wings & hooves, covering his long, dark blue colored mane. His cutie mark was that of several lines from the left, heading right & going into a curve, and it seemed to be that everything floated around him as if he were a tornado. The aura of his magic was white, and he turned, seeing the princesses standing together.

"Well, Well, Well," The Alicorn spoke, tossing the book aside "looks like the rumors are true: There's a new Alicorn among us!"

"Areos!" Celestia gasped "Please, I can explain!"

"Don't, sister, I simply came here to deliver a message." Using his magic, he levitated a scroll to Celestia. Celestia opened it and skimmed though the letter.

"I'm sorry to say," Celestia read "but I won't be going out with that pony and I will not-"

"WRONG MESSAGE!!!" Using his Magic, Aeros took the scroll out of Celestia's hooves & placed it back in his bag. He began to look into his satchel again, murmuring to himself on how he messed up a delivery again. He pulled out another scroll, this time, he was confident on who he was giving it to. Celestia skimmed through the message again.

"Dear Princess Celestia, Luna, and Cadence, As you should know, the annual meeting of the Alicorns is only a few days away, and you know the task we must do. Many of us had already seen your apprentice, the once unicorn named Twilight Sparkle, become an Alicorn and we would very much like to see her face to face. Tell her what's going to happen and, if she has questions, allow us to answer them for her. Hoping to see you soon ~~~ Your Brothers and Sisters."

"Our annual meeting is that close?" Luna asked

"I've almost forgot about that." Cadence added

"Don't worry about it," Aeros responded, jogging in place. "If you need me to, I could-"

"That won't be necessary, Brother." Celestia interrupted. "I will personally tell her, thank you very much."

"...Eh, alright, see ya in Elysium!!!" He was gone in a quick blur, throwing whatever loose paper there was flying in the air as he ran in super speed that could only be described as him being the other 'Fili-Second' in the Power Ponies comics. Celestia took a deep breath, levitating one of the various papers in the air & a quill over to her writing table.

"I knew this day would come."

"Is there something wrong with that?" Luna asked, walking over to her sister's right side

"No Luna... I knew she'd have to do this, but I didn't think it'll be now. How will I be able to calm her down in this!?!?!?"

"...The same way Mother Nature did to her children?" Cadence answered. The sister looked at her.

"I'm not sure it'll be like them." Luna added

"I know: it's going to be MUCH easier than those ponies!"

"...Maybe you're right." Celestia replied smiling with a chuckle "I remember how much of a hassle they were with when they entered Elysium."

"And, might I add, Twilight's seen many weird things on her adventures, so this may or may not be the weirdest thing to her, but I'm sure she'll calm down much faster."

"That, I can agree on."

"I'll prepare for my trip then," Luna spoke, exiting her sister's room "I'm going to need all the sleep before meeting our siblings again."

"I'll go and tell my husband on what's happening," Cadence added as well, following Luna "don't want him to freak out that I'm gone for the day. I hope the others accept Twilight as another sister"

"Let me worry about that part, Cadence." Celestia spoke, writing down on her piece of paper "My Dearest Twilight Sparkle..."

A few hours later at Twilight's Castle:

"'You, Cadence, Luna, and I have been invited to an annual meeting made every ten thousand years.'" Twilight read the letter to herself. It was late at nighttime, so Spike was sleeping in his makeshift bed (one of the few things spared from Tirek's attack) and all of Twilight's friends were back in their home, asleep as well. The only one awake, besides herself, was her pet owl, Owlicious, who helped her in the night, usually getting a book in a top shelf area. "Ten Thousand years? 'I haven't told you this at all, but, we aren't the only four Alicorns in Equestria.' We aren't!?!?!? 'On the contrary, there are other Alicorns around the world, each performing a single task that no regular Earth Pony, Unicorn, or Pegasus could do together. I wish to name them all, but I figure it's best if you meet them face-to-face with me as your guide to our location. I will give you more details when in the afternoon; use your morning to tell your friends about where you'll be going away for a couple of days. If any of them wish to join, I'm sorry, but they must stay here, for if they come, the world will most likely cease to exist anymore. This is something only Alicorns can do, but they will see where we will go when the time comes. Your Teacher, Princess Celestia'." Twilight sat on her haunches, rereading the letter in her head. "There are other ones like me? Who are they? What do they look like!? When did they came!?!? Where did they come from!?!?!? Why is this happening!?!?!?!? How am I going to-"

"Who!" Owlicious hooted. Twilight turned and saw Owlicious giving her an annoyed look. She giggled awkwardly.

"Sorry. I just don't know how to handle this. Calm down Twilight, your questions will be answered in the morning. Just... write a letter to your friends, tell Spike what's happening, and have him send the letters out. Yeah, that should do it."

"Who."

"I will! Don't get your feathers curled up."

"Who."

"... fine, I won't get my feathers curled up." She climbed onto her bed and rested her head on the pillow. Many questions ran through her head, all of which causing her to stay awake, not even sure if she really knew her teacher, her teacher's sister, and her sister in law anymore. Could they be hiding more secrets than what she knew? The time felt slow: minutes seemed to be more like hours now, and she still couldn't sleep. "This is going to be a long night."