"Did I make a mistake, Barnon? What if she was right? I tested it so many times, but I could have missed something -- and she's my Mentor, my Teacher. She knows better. And what about Spike? What if opening a portal to go home does cause a problem this time? I can't just leave him there. Sure, he could go home to Canterlot, with my Mom and Dad -- but I don't want him to think I abandoned him or s-something." Twilight starts to ramble, sniffing.