When Twilight and Dusk finally managed to find Spines, they were both giddy with excitement. Secretly, both of them had been worried that they would never see each other again. However, there bout of sheer joy was interrupted a minute after the note had been sent.
"What it he says no?" They both looked at each other. They hadn't thought about that.
"Well, why wouldn't he? Surely, he wouldn't just have me leave without being able to see you all again, would he?" She looked at the other two in the room. "Would he?" she repeated.
"I don't know, Twilight..." Dusk replied. Spines quietly edged out of the room, leaving the two to their thoughts. "I really don't know, Twilight." The colt looked over at her, "But I'm sure that we could find some, if we had to. It's not that uncommon, you know. Most ponies just don't know what it looks like, because it was barely ever used. Why it is used so little, I have no clue. I have a book all about it. Would you like to...?"
Twilight gave him a hug. "Do you really have to ask?" Smiling, the two unicorns trotted downstairs to do what they do best. Read.
Nopony disturbed Dusk Shine when he was reading. They knew better than to do that. Everypony in Twilight's universe knew to do the same, unless there was an emergency. A few ponies entered the library looking for books, mainly the Cutie Mark Musketeers, but they didn't disturb the two ponies engrossed in the book.
"Look! There!" Twilight pointed to a passage in the book, "It says, 'Unicorn Stone is abundant, but is seldom used. This is because unicorns rarely need it to help with spells, since the only spells. They use are ones that they can perform on their own. It is usually only used in classrooms. However, at one time, it was required to have around, just in case of emergencies, so the mayor of each town and city was given a small stash to keep for such emergencies.' Dusk, the mayor probsbly has some! For emergencies only, I suppose, but I'm sure he'd be willing to let us have some. I'd rather get some from Solaris, if we can, though..."
"We should ask Mayor Mustang if he has any first, Twilight," Dusk said, "This book is old, and Ponyville is a pretty new town in comparison to most. Maybe we never got any." He closed the book. "Come on." They trotted out of the library, both of them looking slightly worried.
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"If we have it, I don't know where it is." Twilight sighed as it was said. She had been expecting it, really. Nothing that good could've been possible. I guess we just have to wait for Solaris's answer.
"Thank you for your time, but we should really be going now," she replied. They trotted out of the main hall, where Mayor Mustang had been doing....something. Whatever it was that he did, if anything.
"Dusk! There you are! This came for you!" Spines came racing over, a royal scroll held in her grasp. The two unicorns shared an anxiously nervous glance before Dusk picked up the letter with his magic.
"Thanks Spines." The little dragon nodded and took off for home. Twilight smiled as she watched the little dragon waddle out of sight.
"We should gather the guys before we read it, so that they'll know." Dusk looked at her hesitantly before levitating the note over to Twilight to hold on to. "I'll get Elusive and Applejack. We'll meet in the library." Dusk nodded, and they split up to do their jobs.
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"Wait! Twilight, what's going on?" Elusive called as Twilight galloped for the library. It was still freezing outside, and she had no intention of staying out there longer than necessary. The alabaster colt followed her, just as she hoped he would. Applejack was already there. She had gotten him first to get the majority of her running done first. "Twilight!"
"Just come on, Elusive. You'll see soon enough!" She opened the library door a raced inside. The fashion colt followed suit, groaning and mumbling something under his breath. "Dusk, we're all here." Twilight lifted the letter with her magic and levitated it over to her male duplicate.
"Are you sure you want me to read it?" Dusk asked, and Twilight nodded, "Alright...'To my dearest students, Dusk Shine and Twilight Sparkle..."
I would first like to compliment Twilight on her ingenious idea of using unicorn stone to make an interuniversal pathway. However, I do not consent to sending it to you. Instead, I insist that you come to the castle, where I will oversee the process. There are a few questions that I would like to ask when you arrive, but I do not wish to fill my letter with questions.
Please come to the castle as soon as possible. I will allow you and your friends all to stay in the castle for the duration of the procedure. I look forward to your arrival.
Your teacher,
Solaris
Twilight breathed a sigh of relief. She hugged Elusive for a moment and shared an excited look. They looked around at their friends. They were all in different states of confusion. Well, all except Bubble Berry. He started hopping around and shouting. "Hooray! Hooray! We're gonna be able to go to another universe!" This just caused more confusion.
Finally, Twilight broke the silence. "Let's get going!"