Prologue

A/N: This is my first story, so I appreciate feedback. Just please, I'd prefer it if you weren't rude about any criticisms you may have. I've never been very good at starting stories, so I apologize if this isn't a very good first chapter. The next chapter is finished, I just need to proofread it. I should have it up by tonight. Also, I am trying to be as original as I can be with this story, so if I use something from another story, I apologize, it is completely unintentional. Thank you very much, I hope you enjoy my story as much as I enjoy Hook ;)

Disclaimer: I do not own Once Upon a Time or any of its characters, unfortunately.

Danny Swan and her sister Emma weren't normal twins. They were about as different as night and day, not only in looks but personality as well. While Emma was the fair haired, independent type, Danny was the stubborn and rebellious sister. When they were 15, the sisters were separated because the foster family hadn't wanted to risk the complications that came with troublesome twins. So Danny ran away and lived on the street for two years, before she was able to get an apprenticeship at a tattoo shop. When the sisters turned 18, they lived together briefly, until Emma left again to be with her boyfriend, Neal. Two years later when Emma was arrested, Danny left the shop she had worked at to be closer to her sister, and be there for her when she was released.

After that, they had lived together for a few years before Emma moved back to Boston, in order to try and start over for herself, while Danny kept moving around. As a living, she traveled the world guest spotting in tattoo shops and showing her art in galleries; most of the time she lived out of suitcases and hotel rooms, making it difficult for her to make lasting friendships.

Despite the differences and frequent fights between the two, they always managed to resolve their problems. It sometimes took longer then others, and they often went years without seeing each other, but every time, without fail, one of them would break and they would make up, traditionally with junk food and movie marathons. Danny and Emma were best friends. They were blood, and blood always sticks together. So when Emma had called Dani desperately on their 28th birthday, distressed and rambling about her long lost son and how he had run away to find her, Danny had driven all night to a little town called Storybrooke, knowing that her sister needed her.

While Emma had seemed to fit right in with the town, minus the whole Regina hating her and trying to throw her out of town anyway. Danny on the other hand was much more standoffish. She had never been the type to settle down, so when the sisters had decided to stay indefinitely, it was difficult for Danny to put down roots. The only two people Dani had really gotten close to were Ruby and Henry; most of the others in town just ignored her, thinking of her as Emma's oddball sister.

Danny had jumped into the portal after Emma had been sucked in after the wraith. Emma, Danny, David and Mary Margaret had been trying to save Regina's life, by sending the wraith that was after her through a portal to what was left of the Enchanted Forest. But the wraith had somehow latched onto Emma, dragging her in with it.

Danny had jumped in without a thought. They were sisters, and sisters always found a way to save each other.