In Trottingham, a large pair of ships appeared in the harbor, bearing ponies in white hats and long, strange coats.
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Twilight stood at the entrance to Ponyville, looking at the small group of Ponyville natives in front of her. She had asked the Strawhats (as they called themselves, despite the fact that only one wore a strawhat) to remain behind until she called for them so as to avoid frightening someone into another altercation. She turned her full attention to the group of ponies-- and Spike-- and began to speak. "I have called you here today to tell you about a unordinary new group of ponies entering Ponyville. Some of their appearances are quite strange, which is why they are waiting behind. I don't want another embarrassing encounter like the one we had with Rainbow Dash." Rainbow blushed as everyone turned to look at her. "Alright then, come on out guys!" Twilight called.
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The mayor watched as the group of ponies rounded the corner. She first noticed the skelepony-- strange, but Twilight seemed to trust these out-of-towners, so no reason to freak out. Still, they should probably get it inside before anypony saw it. The big one was shaped weird too, but not nearly as bad-- but he needed to get into hiding soon too. The rest were actually fairly normal, other than the scarred one. To no one's surprise, Pinkie Pie gasped and ran off, no doubt to prepare another party.
Then she saw it. She walked up to the group, surprising the other Ponyvillians (who were no doubt gawking at the skelepony) and moved over to the tan-colored Earth Pony. "Excuse me son, but where did you get that hat from?" The stallion grinned, a look that just looked natural on his face. "This? Shanks gave it to me." Unexpected by everyone, the old mare began to laugh. "Oh, my! I knew this kind of thing was on a cycle, but I had forgotten it was that time again!" She turned to Twilight, who was looking at her with a puzzled look on her face. "I believe I know where these strangers come from, and if they're anything like the last ones they shouldn't be any trouble."
Applejack spoke up first. "What in tarnation are you talkin' about, Ma'm? You've met these strangers before?" "No, but I've met people like them, Miss Applejack. Now, please hold your questions for a few moments." She turned back to the group of-- pirates, probably. "You all are from the Grand Line, right?" The Straw-hatted one spoke up. "Yeah!" "I thought so. Well, then best explain this to the young ones."
She stepped off and turned to face the entire audience. "To start-- you these out-of-towners are from much further away than you think-- they're actually from a different world." Both groups seemed equally surprised at this revalation-- except the Orange pegasus, who seemed reserved. " I figured as much." she muttered. Rarity regained her composure first. "Mayor, do you mean to say that these... newcomers... are from a world outside of Equestria?" The mayor nodded. "Yes, Rarity. They were transported here by a..." she looked over at the pirate crew. "Fogbank, correct?" The orange one nodded, and the mayor continued. "It is an event that connects our worlds every ten years, and then twice in the span of a week. We'll need to get them to Princess Celestia-- She will know what to do and how to find the way to their world. Twilight, you and I can call in and get some transportation there. Meanwhile, Applejack and Rarity can show them around Ponyville. Meanwhile, Miss Fluttershy can take the two who are more likely to cause a panic and take them to her house. Let's go, Twilight." At this, the pair departed, followed closely by Spike.
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Applejack looked at the crowd of... outworlders... and sighed. Just their luck that the interdimensional travelers would end up in Ponyville. Were other towns in Equestria this crazy? No matter, she had to take them on a tour of Ponyville. At least Rarity was helping out-- that should make dealing with this crowd easier. "So... y'all have any questions 'fore we start the tour?" The tan-coated one shot his hoof up. "Yeah?" She asked. "Where can we get some food? I'm starving." The orange-coated one's hoof collided with her face. "Of course you are." She mumbled. "Oh, yeah. That reminds me." The navy stallion spoke up. He kind of pulled the tan pony off to the side and whispered something into his ear. The straw-hatted one's eyes widened as he screamed. "WHAAAAAAT?" Rarity looked at the rest of the ponies, who were all completely unsurprised by this turn of events. "What's wrong with him?" She asked. The brown one shook his head. "We'll tell you later. He'll be fine."
"Well... anyways. Everypony follow me. Let's get this tour started." The ponies followed Applejack as she walked into town, Rarity keeping close behind.
AN:Sorry for the shortness here-- I've been rather busy the last couple of days. More shall come... I've finally got the plot mapped out. So, anyways-- obviously, there have been connections between the two worlds before-- if Celestia's earlier actions didn't show it, this should make it clear. I decided to make the Mayor a more prominent character here than she is in the show, mostly because I wanted a connection between generations of pirates. Well, I hope you all enjoy it-- I tried formatting it a bit more this time, so hopefully it's less "Wall of Text".