"The Snow Queen" (Danish: Snedronningen) is an original fairy tale written by Hans Christian Andersen (1805–1875). "The Snow Queen" story is the original story of Disney's Frozen.
THE SNOW QUEEN - PLOT :
An evil troll, called "the devil",[2] has made a magic mirror that distorts the appearance of everything it reflects. It fails to reflect the good and beautiful aspects of people and things, while magnifying their bad and ugly aspects. The devil, who is headmaster at a troll school, takes the mirror and his pupils throughout the world, delighting in using it to distort everyone and everything; the mirror makes the loveliest landscapes look like "boiled spinach." They try to carry the mirror into heaven with the idea of making fools of the angels and God, but the higher they lift it, the more the mirror shakes with laughter, and it slips from their grasp and falls back to earth, shattering into billions of pieces, some no larger than a grain of sand.
These splinters are blown by the wind all over the Earth and got into people's hearts and eyes, freezing their hearts like blocks of ice and making their eyes like the troll-mirror itself, seeing only the bad and ugly in people and things.
Years later, a little boy Kai and a little girl Gerda live next door to each other in the garrets of buildings with adjoining roofs in a large city. One could get from Gerda's to Kai's home just by stepping over the gutters of each building. The two families grow vegetables and roses in window boxes placed on the gutters. Gerda and Kai have a window-box garden to play in, and they become devoted to each other as playmates.
Kai's grandmother tells the children about the Snow Queen, who is ruler over the "snow bees" — snowflakes that look like bees. As bees have a queen, so do the snow bees, and she is seen where the snowflakes cluster the most. Looking out of his frosted window one winter, Kai sees the Snow Queen, who beckons him to come with her. Kai draws back in fear from the window.
By the following spring, Gerda has learned a song that she sings to Kai: Roses flower in the vale; there we hear Child Jesus' tale! Because roses adorn the window box garden, the sight of roses always reminds Gerda of her love for Kai.
On a pleasant summer day, splinters of the troll-mirror get into Kai's heart and eyes while he and Gerda are looking at a picture book in their window-box garden. Kai becomes cruel and aggressive. He destroys their window-box garden, he makes fun of his grandmother, and he no longer cares about Gerda, since all of them now appear bad and ugly to him. The only beautiful and perfect things to him now are the tiny snowflakes that he sees through a magnifying glass......
For more info about "The Snow Queen" fairy tale story :
https://en.wikipedia.org/wiki/The_Snow_Queen