You won't get out.
Luna sat on the train with Ginny and Neville, glad to be going home to her daddy for christmas. Maybe they could go to Sweden again and search after the Crumple Horned Snorkack again? She had enjoyed it so much that last time. Maybe she wouldn't think about her friends tortured by the Carrow siblings, or the about poor first years or how Harry, Ron and Hermione was somewhere out there, hiding. She knew that she needed to relax, or whatever people do when they don't dread being tortured for no reason.
As they came in to the station the train whistled and she looked out the window, anxious to see her dad. But no, no dad. Feeling cold she gazed out, three dark hooded persons stood just outside their window. Death eaters. Great. What did they do to her dad? Was it her they where after?
The death eaters stood there. She, Neville and Ginny looked at each other. What should they do? Luna rose up, determined.
"I will go and se what they are up to. No one can mess with my dad and come out without fighting me." Neville and Ginny was going to argue, Luna was thinking of going out the door. But before that the three death eaters came into their compartment. She thought of fighting them, but the most feared Bellatrix Lestrange was among them.
"What do you want?" she asked boldly.
"Oh my sweet, you should just go with me now." Bellatrix laughed soft, like a lunatic.
"No, don't touch her!" said Ginny, Luna looked at her with her big eyes. Ginny was always so brave and kind to everyone.
"I will not listen to you, you blood traitor!" said Bellatrix and raised her wand, but instead of bewitching Ginny she decided to let her go and take Luna instead. The two death eaters behind Bellatrix moved over to Luna, grabbing her everywhere. No, get off me! Luna thought, her mind been put to sleep. But she still tried to keep fighting. Where is my daddy? Maybe he wrote something? Yes, my dad's so... Then the sleeping spell worked and Luna went unconscious. She didn't even recognize when she was apparated away from King's cross station and all of her friends.