"I don’t know this part of the palace at all, Master." Twilight said as Nightmare Moon led her and Spike through a completely unknown part of the palace.
"I've just had this part of the palace built recently because I needed more space." answered Nightmare Moon
"More space for what?" Spike asked, but the Queen did not answer but stopped in front of a big gate, she casted a spell, and the gate opened to reveal the enormous hall beyond, and Twilight and Spike fell in amazement.
In front of them was a huge hall with thousands of books in seemingly endless bookshelves. Here they were. Among all these books were certainly those from Canterlot. They got one step closer to home. Twilight did it, inside Spike rejoiced.
"Welcome to my little book corner, Twilight Moon.” said Nightmare Moon playfully.
"You are allowed to read everything you want and you can come here as your heart's content. I'll leave it open for you." Twilight beamed with joy.
"Thank you, Master." said Twilight cheerfully,
"Oh, nothing to thank for, my student. It’s the least thing i can do." Nightmare Moon said and smiled at her.
"Go ahead, Twilight. I'm in the throne room if you need me."
Twilight walked into the library, followed by Spike while the Queen turned and left them alone.
Twilight felt like in a fairytale. Nightmare Moon's library was gigantic. So many books were not even in the library of the Crystal Kingdom and that’s was already huge. She could spend a lifetime reading and learning here. But she pulled herself together. They were looking for Starswirl's scroll to finally get home.
"Twilight, look there."
Spike pointed to a small door that reads "Starswirl the Bearded" Department.
"That's it, we can go home soon, back to our castle and to our friends."
"Twilight, the number with Nightmare Moon student was the best thing you could have done!" Spike said approvingly, hugging his friend as hard as he could.
Finding the scroll in the department was the easy part. Because now Twilight and Spike sat in front of the scroll and had no idea what they had to do now.
Starswirl had recognized the dangers of time travel back then and put a kind of safety check in the scroll so that you couldn't only travel back more than a week. But Twilight didn't know how Starlight had managed to get around his system. After all, they traveled back decades to Rainbow Dash's first rain boom.
"What does that mean you can not change the spell?!?" Spike asked in disbelief.
"Starlight did it, too." "I don’t know how and I have never dealt with time magic before. And I cannot start and change something. It can have dire consequences if we use the spell!" said Twilight.
"Don’t worry, Spike! I can fix this! Please get me all the magical books about time magic you can find. Looks like I’ve got work to do! "