The Duke's Curse {Frozen/multi}

Elsa has a great life, until she meets the Duke of Weselton. He puts a terrible curse on her that has turned her into a frog! He tells her that if she marries him, he can undo the curse. She refuses (obviously) and tries to get the attention of her sister and all her friends. But the Duke curses them too! Will Elsa finally give in and marry him, or will she just try to live with...THE DUKE'S CURSE?