When I saw her i think i died

Jack saves a girl and falls in love with her learning that she's the grim reapers daughter. He tries his hardest to keep her happy. After a attack from Pitch the guardians learn something they never knew about Elsa.

"Darkness is all that will be left in this world. He will get what he wants and that will be darkness. There is no light left that can mask the darkness. For as long as the moons rhapsodies have lived we knew this would happen eventually. You can't stop us you never will. Only a melody can but now she is gone and her dark side is here and shall always stay. Goodbye for now my friends......."