Chapter 1: Ultimate Sacrifice

Now that it's in me, it's time to end me...
Season 5AU. When the darkness is unleashed on Storybrooke, someone else takes Emma's place as the next Dark One. In the back of her mind, she knew that it would have to happen at some point, her father's darkness truly taking over. Now that it is within her, she's convinced that she's a danger to everyone she cares about and it's time to end the darkness once and for all.