Image imported from derpibooru 
Original Description:
 
The fairy/ocean liner, that dropped off Rainbow Dash and the others, had just left Farasi. As Starlight, Twilight, and Sandbar watched the port, grow farther and farther away, as the sunset. “Good luck, Yona.” Sandbar said to himself while looking out the window. Starlight, on the sun deck, took one last glimpse of the port, before going inside. Twilight, on the quarter-deck, felt the wind blowing, and continued watching for several more minutes, before heading inside, feeling as though the ship was visually zooming out.
 
That night, Starlight was looking at the ocean, from the bow deck. Doctor Whooves was also there, along with Gallus, who noticed something heading towards the ship. Somnambula opened the door, and noticed Starlight. She walked over to her, and Starlight turned around, seeing her. “Everything’s happening so fast.” Starlight said. Every creatures’ turned against us, from Starswirl to Trixie. Can the spell even be undone?” Somnambula explained that she was hopeful that the spell of corruption could be undone, with or without the elements. While she was explaining, Gallus noticed the thing coming closer, was another ship. It appeared to be heading their way, nonstop. The ocean liner blew its horn, signaling it had the right of way, but the ship didn’t stop nor change course. Doctor Whooves ran up to Gallus, and realizing what was going on, Somnambula and Starlight followed. The horn blew again, but this time, the ship responded by shooting the propellers, slowing and stopping the ocean liner ship.  
The ship suddenly began to slow down, and launched hooks at the ocean liner, hitting through the hull. When the ship got close enough, it was revealed to be belonging to King Sombra’s Crystal Empire. In fact, some of the corrupted creatures were familiar faces. It was even led by some pony that Starlight knew. “Trixie?!” Starlight said, as soon as the lights shined on her. “That’s right! It is I, the king’s great and powerful pupil, Trrixie, and we’ve come to take over this ship, for King Sombra’s new navy!” Gallus backed up, saying with Whooves, “They’re Pirates?!” Starlight tried to reason with Trixie, but her perception saw her as the villain, as well as anyone who has against King Sombra. They saw him as a great ruler, who gave disabilities and misfits rights, and took rights away from bullies and criminals. They saw slavery as necessary to punish those with even the smallest history of bullying and bigotry, as well as abusing them.  
Trixie brought up a megaphone, announcing the attack. “ATTENTION ALL PASSENGERS! WE ARE TAKING OVER THIS SHIP! REMAIN CALM, AS YOU WILL BE FORCED OFF THIS SHIP, AND FORCED ONTO THE LIFEBOATS! THOSE WHO REFUSE TO OBEY WILL BE TERMINATED!” Security came to stop them, but they eminently came onto the ship to attack. Somnambula tried to fight back, but Starlight encouraged her that it would be best if they did what they were told. The Crystal Pirates held the entire crew hostage, and escorted to the lifeboats. Surprisingly, when they were requested to place them specific groups, the pirates complied, seeing no harm by doing such. When presumably all passengers were in the lifeboats, they were all launched, and the ocean liner was dragged away by the other ship.
 
Takes place after https://derpibooru.org/images/2752510