It seems like X's coordinates were spot-on; Fluttershy had no problem finding this "sky island." She approached it, expecting to see the two ponies that were mentioned. When suddenly, she heard a mare's voice.
"HEY!" The sudden voice startled Fluttershy.
"Um, who's there? Where are you?"
"We are in this weird room sorta place in the island. The door seems to be jammed and we can't get out. Think you can help us?"
"Um, I can try to help," Fluttershy replied to the mare.
"Try opening the door from the outside, it might be locked shut." The mare was right; Fluttershy was looking at a lock on the doorknob. She unlocked the door and opened it. Inside she met two ponies of the same color.
"Thanks for helping us out, Miss, um, what is your name?" The mysterious mare asked her.
"Um, I am Fluttershy."
"Nice to meet you, Fluttershy. I'm Curly Brace, and this is my friend Quote."
"It's nice to meet you, Quote," Fluttershy told the stallion. But he didn't reply. "Where are you two from, anyway?"
"Actually, we can't seem to remember at all," Curly said. "We only remember recent events."
"Well, do you remember how the island fell? I want to learn about this place." Clearly, Fluttershy's curiosity got the best of her.
"We'll tell you later," Quote finally said. It was already midday. Quote and Curly have clearly been through a lot of trouble already.