When Two Worlds Collide (Disney And Dreamworks characters in story)

Elsa and Anna are traveling around with their cousin, Rapunzel (and her fiancé, Flynn). Kristoff comes and Hans follows.
Merida is visiting Berk.
Hiccup is in Berk, training Toothless.
What happens when they meet each other?
HiccElsa story.
With a little KristAnna thrown in here and there :)