Outside the Cutie Mark Crusaders' clubhouse, its former owner, the older sister of the current owners' leader, was walking right towards it.
"Apple Bloom! The kitchen oil is still not returned to the kitchen! Seriously, what are you and your friends doing with it that takes so long?" the orange mare called, but got no reply.
"Apple Bloom?! Sweetie Belle?! Scootaloo?!"
Applejack entered the clubhouse to see none of the CMCs there. But what she did see was the book of potions and the page turned to certain one...
"What's this? Pixie Dust Potion? A potion that grants things weightlessness and the ability to fly just like pixie dust from the story Peter Pan...warning; too many bird feathers will cause the potion to be a Bird Transformation Potion instead?!"
The farmer was obviously shocked to read what the book said, realising what it mean.
"My little sister and her friends must be little birds, helpless out there! Hard to find food, get safe shelter...I got to get Twilight to find them and change them back!"
Princess Twilight was shocked to hear what she got from Applejack.
"turned into birds?!"
"Most likely, because of this." Applejack nodded, showing Twilight the book flipped to the page.
"If what you said is true, then they can be anywhere! I'm so sorry, Applejack...I should have kept an eye on them...." Twilight apologised, "I was just....thinking that Apple Bloom's so good, just like I was back when I was around her age, she'd be alright...."
"Well, that doesn't matter now! We got to find her and her friends, is what does!" Applejack announced, galloping out of the Golden Oak Library with Twilight following her.