Tainted Ice

After being sealed away, Pitch is determined to get revenge on Jack and the guardians. Remembering the day he had combined darkness with frost, Pitch starts to find ways to imitate Jack's powers. The years pass and he finally gets it. But he has one problem: he can't use it. Frustrated, Pitch tries to find someone who can use it. He travels to worlds beyond and finds in the city of Arendelle - two princesses. He initially thinks the younger would have been okay but sees potential in the eldest. This is where the story starts... JELSA Semi-AU