ReadOasis Step 2 Elsa stands high on a frozen mountain. Cold snow flies into her face. She pulls off her gloves. She raises her bare hands to the sky. Bright blue ice explodes from her fingers. She sings with a free, loud voice, “Let it go!” The words shake the sky and break the heavy chains of her heart.  "Let It Go" ranks among Disney's most beloved songs. But its movie "Frozen" almost died in the beginning. And the song "Let It Go" actually saved the movie. The writing team had big probl...