"Flash! Where the heck did I put History of Equestria?!" Twilight called from the library.

  "How should I know, you misplaced it!" Flash called back from the kitchen. He was making dinner for him and Twilight tonight. The two had been boyfriend and girlfriend for 5 months now, and they were pretty much happy. "Oh, wait, found it!" Flash called up. Twilight came zooming down the stairs like a bullet and snatched it out of Flash's hooves. "Well somepony seems eager to read it." He smiled and nuzzled his girlfriend's nose. Twilight nuzzled Flash back. Then, they heard the doorbell of the castle. "Now who could that be?" Flash asked. Twilight went to go open the door.

  "HI TWILIGHT!" Pinkie Pie smiled, startling Twilight.

  "Pinkie Pie, you scared me!" Twilight said as she breathed heavily.

  "Sorry, sorry, I just wanted you to meet two ponies I found!" Pinkie Pie smiled as Thomas and Lady appeared from behind her. Twilight dropped her book in awe.

  "OHMYGOSHOHMYGOSHOHMYGOSH!" Twilight squealed as she went to examine them. Thomas yelped as Twilight touched his cutie mark. "A number for a cutie mark, that's new." Twilight said. "It's a number one. What does that mean? Spike!" Twilight called. A little purple dragon raced down the stairs. Thomas was shocked.

"Yes Twilight?" Spike asked.

"I need my book of cutie marks." Twilight said. Spike nodded and raced upstairs to get it.

"Which one was it again!" Spike called from upstairs.

"The one with the big cutie mark on the cover!" Twilight called up.

  "Found it!" Spike said as he raced back downstairs. He handed Twilight the book and she flipped through it's pages.

  "Let me see, number one, number one, odd, there are no number cutie marks in here." Twilight was puzzled.

  "That would probably be because we're not from here." Thomas told her. Twilight jumped in fright.

  "How, how, what!" She asked. Thomas laughed.

  "What? Never seen a talking horse before?" He asked. "Well, considering you guys are talking, colorful horses, I guess you have then." He said. Lady laughed.

  "Excuse my Tommy here, he's just very cheeky sometimes." Lady giggled. "Anyways, allow me to introduce us. I'm Lady, and this is my boyfriend, Thomas." Lady said.

  "Well, I'm Twilight, the Princess of Friendship here in Ponyville, and this is my boyfriend, Flash." Twilight said. Flash smiled and shook Thomas's right foreleg. "How did you guys get here anyways?" Twilight asked Lady.

  "Long story." Lady started, as she began to tell them their story.

  

---

  "Whoa, that is long." Flash said about half an hour later. The four of them were sitting and eating dinner. Lady nodded.

  "So basically you're a magic guardian from an island called Sodor?" Twilight asked.

  "Yes, see, there, me and Thomas are steam engines, along with the rest of our friends." Lady explained.

  "However, there, a diesel named Diesel 10, which you don't want to meet by the way," Thomas added, "is bent on destroying Lady and conquering the island. "I'm pretty much the only one who can protect Lady." Thomas explained.

  "So, you're like her personal bodyguard." Flash guessed.

  "That's one way of looking at it, I suppose." Thomas said. "I'm guessing you're Twilight's personal guard too." Thomas guessed. Flash nodded.

  "Well, look at that." Lady smiled. "The boys are comparing their jobs." She giggled. Twilight did too.

  "So Lady, I noticed that you're an alicorn." Twilight said. Lady looked at her horn and wings. "However, I don't know how an engine from your world can become an alicorn, even with you being magic." Twilight told her.

  "Well, I guess it is a little odd being a pony as well, but I'm sure I'll get used to it." Lady said. Twilight laughed.

  "Believe me, being a pony is nothing. Try being human for a few weeks." Twilight said.

  "Actually I have been human before. So has Tommy." Lady said. Twilight's jaw dropped. Thomas nodded.

  "Yeah, me and Lady got stuck as human for a while, once we got back to being engines, well, we were glad that ordeal was over." Thomas said. Meanwhile, in the Everfree forest, a blue portal appeared, spitting out a dark brown stallion with a spiked black mane and tail, blood red eyes, his muzzle was darker then the rest of him, and his cutie mark was marked D10. The stallion laughed, as two more followed behind him. These two were a hazardous yellow, brown eyes, brown mane and tails, one of them had a black goatee, and their cutie marks said Iron A and Iron B.

  "We made it!" Diesel 10 cackled. 'Arry and Bert looked at each other's new forms in awe.

  "Dude, you're a horse!" Bert said to his twin.

  "So are you!" 'Arry said. Diesel 10 cleared his throat.

"Enough, we came here to find Puffball and Lady, not mess around!" Diesel snapped. "Now, time to show this world just what I am capable of!" Diesel cackled to the air.