Pinkie Pie was known for disappearing and reappearing all over Ponyville, heck even all of Equestria. But what happens when the pink mare reappears and there's a hitchhiker along for the ride that only she can hear?
Fluttershy is kind. Everypony knows that, and everypony loves her for it. But sometimes, being kind gets you into trouble. When Fluttershy hears a cry for help in the everfree forest, she goes to help without thinking. She probably should have.