Sunset read the sentence, nodded, put down the journal, climbed down the ladder from her bed, then wandered over to her closet to pick out what to wear.
She then froze in place upon realizing just what had transpired.
With a wide-eyed gasp, she scrambled back up to the bed, and reopened the book. She grabbed a pen and furiously scrawled her response:
"Does Twilight know?"
The book's page shone for several seconds before a plain and simple, "Nope." appeared. Sunset was about to write back when the page shone again, and another two sentences followed. "I mean, hundred percent chance of her finding out when she sees this. Is erasing a thing with this book?"
Sunset chuckled with a half-smile. "Nope."
"Of course not. Also, just remembered I'm writing this with a quill and ink. Wow, I really did not think this through. Maybe if I hide—"
"Do not hide the journal, Starlight. Also, keep in mind that everything you're writing right now is an indelible and undeniable record."
No reply followed—at least not with words. Sunset wasn't sure, but she thought she saw a couple of dents appear on the page, one after the other. They disappeared just as quickly, however. Maybe it was her imagination. She wrote some more. "Why do you have Twilight's journal, anyway?"
"She said I could use this for emergencies," Starlight wrote back.
Sunset tensed. Her intuition had been right after all. Instantly, she went into Business-Handling Mode. "Got it. What's wrong? Who's in danger? What villain's threatening Equestria this time? Or is one coming to my world?"
Several seconds passed. "No bad guys, Equestria's fine. Nothing to worry about there."
Sunset deflated, doing her best to not get angry. Still, if there was one thing she hated, it was her time being wasted. "Starlight. Get to the point."
And Starlight did. All of them. At once.
"Sorry Sunset I'm so sorry sweet Celestia I am really messing this up I honestly don't know what to do here I thought hey I'll just get the book that lets me talk to Sunset she'll get it and it'll be fine but I didn't have any plan beyond that and this was a dumb idea forget any of it even happened I'll just close the book and wait until Twilight comes back in a month"
"Wait, hold on." Sunset interrupted Starlight's torrent of hoofwriting. "A month?"
"Oh. Yeah. She's overseeing the construction of an annex to the Friendship School a few towns over. She'll be away for a while. The other faculty are running things just fine, and I should be joining them, but..."
Sunset decided to take a stab in the dark. "This emergency's with you, isn't it?"
A whole book-glowing minute passed before Starlight's reply. "Can I come over?"
Sunset nodded. "I'll meet you at the portal. Give me an hour, though, yeah. It'll take me about that long to get dressed and ready."
"Okay. See you soon. Also... thanks."
Sunset closed the book, sitting silently in her room.
It appeared Captain Celaeno would have to wait a while longer.