It had been a year now, to the day, when Lucy was left at the tower to be forgotten. Her father threw her away when he couldn't marry her off due to her stubborn and mouthy personality, now she had a new family that she wouldn't trade for the world. At first the two lovers didn't leave the cave, but then Lucy wanted to meet all of Natsu's friends. He was reluctant at first, not wanting to share her attention but quickly changed his mind when he came to the conclusion that he would get the chance to show off such a high quality mate he had found.
So Lucy came to meet everyone.
More of Natsu's cousins, Wendy, Sting, and Rouge, all dragons of different elements and abilities. Wendy being the first and only female dragon Lucy meet, a sweet young girl that just left her mother's cave just last year. The light dragon Sting had a mate that intrigued Lucy as she was some sort of celestial being that used magic similar to her own.
The ice spirit, Grey, Natsu refused to acknowledge as a friend and his water nymph wife, Juvia.
A red-haired warrior fae that was often referred to as 'Queen' and the only one that seemed to be able to make the group of rowdy boys behave with just a glance. The fierce and feared fairy queen scared Lucy at first, but not for long for the human girl quickly discovered that the queen loved sweets and cute things. Someone had to keep such a rowdy group of trouble makers in line after all. Titania Erza's partner also held a connection to the stars just as Lucy, only his connection being a bit more literal as he was a fallen star that landed after he fell in love with Erza and gave up his eternal life to be with her.
The Strauss siblings were something extremely exciting to Lucy as she meet the family of shape-shifting changelings. The oldest, Mirajane, being the same age as Erza and possessing the power to change into and channel the power of different types of demons. Elfman, the middle child, utilizing the powers of beast. And the youngest, Lisanna, who could use the abilities of animals. Mira seemed to be the only one in the group of friends that could stand toe to toe with Erza, the two once rivals and now close friends. Elfman obsessed with being as macho and manly as he could while never looking down on women. And Lisanna, a sweet girl that was once in a romantic puppy love relationship with Natsu when they were children. Lucy and Lisanna quickly bonded as they had much more in common than the fire dragon, the two often teaming up and teasing Natsu together.
Lucy's family grew bigger as she meet everyone, she finally had a home to call her own. On the anniversary of her abandonment Lucy and Natsu went to the tower to bring over her books and notes that she left behind. The dragon was quickly put to work with the task of flying to books back to the library in the cave that Lucy stacked up for him, he wanted to make it all in one trip, but Lucy refused as she didn't want to run the risk of some falling or them getting damaged.
It was while Natsu was flying his latest stack into his cave that they showed up for her. Lucy didn't notice when door to the tower opened, or when steps climbed the stairs. When she heard footsteps behind her, she gathered another stack and prepared to hand them to her grumpy husband. The books and papers scattered, her magic sparked to life on her skin, and she fell. It had been so long since she last saw him, she assumed that he had given up. She was wrong, he was preparing, and he did not come alone.
They left swiftly; they didn't see either dragons from his last visit to rescue his fair princess. Dan wanted the chance to prove himself in battle, confidence in his abilities to take on them both making him wish they would show up as they rode away with an unconscious princess.
Eyes fluttering open Lucy struggled to focus her sights on anything around her for a moment, her head felt so full and groggy. Sitting up with a small groan Lucy rubbed her head while her eyes finally focused and she could take in her surroundings. It was such an immaculate room, but one she had never seen before so she knew she wasn't back at her father's castle. Getting up she walked to the window, she didn't recognize anything, the mountains were different too.
Just how far had she been taken? Panicking she pushed the window open and scanned the stars, for the first time in months they were silent to her, her magic was gone somehow. Gasping she cried out in frustration as she pulled at a silver metal collar that refused to budge. Even without hearing the stars whisper to her, she knew how to read them to at least get an idea of where she was. She was in a kingdom much further south than her family.
"Happy!" Lucy cried out, the little kitten was with her when she was taken. Ripping at the blankets on the bed she searched for him, tearing the room apart to look in any place the Exceed could fit into.
"Calm yourself princess." Dan's voice boomed, he entered the room gleefully his arrogance radiating off of him making Lucy feel sick.
"What did you do to Happy?" Lucy demanded dropping the drawer she had pulled out of the dresser.
"Apologizes fair maiden, I don't know what you're referring to." The prince sang as he approached her as if they were star crossed lovers. Lucy stepped away, trying to summon her magic only to be meet with nothing.
"The blue kitten." She wanted her voice to come out strong and angry, but her lip began to waver and tremble. It had been so long since she felt so powerless, so weak, and her imagination just would not shut up about possibilities of Happy's fate.
"Oh, you mean the flying cat?" Dan laughed, Lucy held her hands close to her chest, heart pounding, tears already beginning to burn at her eyes. "The thing attacked us when during your rescue, it did follow us for a bit before it turned around and flew off into the woods." Letting out a sigh of relief, Lucy jumped back again when Dan attempted to grab a hold of her. "Don't fear princess, you're safe now."
"I was safe before you took me." Lucy screamed back.
"You should get some rest; you'll need it for the wedding." Dan went on ignoring anything and everything else Lucy had to say. "Your father should be arriving in the morning, he is in a bit of a rush to make this official and unite the kingdoms. No matter, the sooner we can arrive to your happy ending the better." Dan left the room with a kiss to her cheek that Lucy was too stunned to register. Collapsing on the floor Lucy's eyes staired at the air, her tears flowing freely down her cheeks.
"You look so beautiful when you cry." She knew that voice, it had been a year since she saw him last but she would never forget the man that groped her before casting the spell that kept her imprisoned for so long.
"I won't marry him." Lucy growled out.
"You're quite wrong, Princess Lucy." The man sneered as he walked into the room, closing the door behind him. Quickly crossing the room with long steps, he kneeled before her, taking her jaw into his painful grip and forcing her to look into his black eyes. "You will be marrying me."
"But you're the wizard my father employed to cast the spell." Lucy argued trying to pull her face from his grip. He released her face and gripped onto her wrist instead, pushing her back until he crouched above her on the floor. Struggling under him was pointless, but she didn't stop trying.
"I am the Underworld King, Mard Geer and I will have all that I desire very soon." He growled lowly his lips inches from her own, pressing them onto hers she squealed in frustration. "Bitch." The king hissed as he pulled away, his bottom lip bleeding from her bite.
"I'm already married." She spat out continuing to pull at his deathly tight grip.
"Yes, to my master." Lucy froze. "Don't you know, Natsu is only half dragon? With you I have the key to awaken him to his demon side once again. He forgot himself when he was taken in by that fire dragon, however, with your blood I shall see him again." Mard Geer laughed wildly above her, sneering at her face as she came to the realization. The underworld king, Mard Geer, and his kingdom of Tartaros were world famous as the only kingdom of demons with terrifying amounts of power. All of them serving a single demon with god-like powers, one they called master.
"Natsu is END?" Lucy could not breathe, could not move, she wasn't even sure if her heart was still beating. She lay under Mard Geer as he shook with his wild laughter, the only sound she could hear.
Last chapter is shorter. it's mostly just to wrap up everything.
Personally i like the idea that Lucy and Lisanna would be friends.