Sea Shade trotted through Canterlot, humming a song to herself as she did so. She levitated a few bits out of her bag and counted how much she had. Then she headed to the closest shop and looked around in it.
"Can I… help you?" a masculine voice said. Sea Shade looked up. A red pegasus stood in front of her, his green eyes scanning her up and down. He shifted around a little bit, as if uncomfortable in his own body, but that simply couldn't be. Ponies were born ponies… right? "Umm, yeah," said Sea Shade reluctantly. "I'll take that dragon sculpture," she told the salespony, and he turned around and grabbed it. Sea Shade gasped in shock when she saw that he had no cutie mark. "What?" He asked, and then looked at his flank. "Oh, that," he muttered. "I haven't found my special talent yet," he explained, smiling slightly as he turned back around and grabbed the dragon sculpture. It looked unlike any dragon Sea Shade had ever seen. The painting on it was fairly new, with no chips or anything like that on it, but it was dry. Sea Shade stared at it for a while, and then she looked at the salespony and back again. She repeated this for about five seconds before the realization hit her. "You're not a pony, are you?" she whispered, leaning in close. "No, I'm actually a dragon," said the other pony. "I come from another world, where dragons roam everywhere. This is just the form I took when I got here." He chuckled slightly. "Alright, come on, little pony, let's go somewhere private so we can talk."
Sea Shade followed the dragon-turned-pony to a trailer and headed inside. "So?" she asked, looking around. The place looked bland, she noticed, setting the sculpture down.
"Well, dear one, you're part of a prophecy. A prophecy that involves four different worlds. I suppose you've heard of a certain book series, yes? It's about dragons. My dragons."
Sea Shade thought for a little bit, but then her face lit up. "Wings of Fire?" she asked, cocking her head.
"Yes, yes!" exclaimed Talon, his wings open wide, feathers spread apart by an inch. "I'm from Wings of Fire."
The dragon-turned-pony smiled.
"And you're going to help your very own Princess of Friendship to have all four of our worlds collide."