Twilight Sparkle was pacing frantically, her hooves making small noises against the castle floor which nonetheless echoed through the great crystalline halls of her castle. As convenient as it was to have a new place to live after her library had been destroyed during the fight with Tirek, the place was certainly far larger than it had any right to be, and stood out like a raven in a flock of parrots, standing tall and proud far above the rest of Ponyville.
"Oh, where is it, where is it..." the Princess of Friendship asked the empty air.
"Where is what, Twilight?" Spike wondered, walking into the unnecessarily large room.
"My copy of Magical Potions and Strange Brews. You know, the one with the orange cover? I can't find it anywhere!"
"Why do you need it anyway? It's the middle of the night. Go back to sleep."
"Go back to sleep? I never was asleep! I went to go get something to read before bed and noticed it was missing!"
"It's probably not missing at all. This place is huge, you probably just forgot which room you put it in."
"I never forget where my books are, Spike."
"Ooooookay. Well, the point is, you should stop worrying about it so much. It'll turn up eventually. Please, just go to bed..."
"But-" a sudden loud noise cut off the rest of her sentence.
"...What was that?" the alicorn wondered aloud.
"It sounded like an explosion."
"Which means that my worrying was useful, since we're both already out of bed and can go find out what's going on immediately!"
"...I guess so..." the young dragon replied, sighing.
Sadly, their exit was not immediate, due to the large number of flights of stairs they would have to-
"Come on, Spike, I'm teleporting us out."
...Never mind. Their exit was immediate, after all.