The most beautiful in the mirror realm

It was the beginning of the 18th century. Everyone knows the story, it is the story of Snow White. The story of her, the stepmother and the dwarfs, summarized: the story with the apple. But this is not the story of Snow White, this is the story of Elina, a normal girl from a village, from our world, the real world, but the place where her story culminates is different. It is the mirror realm.
But let's start from the beginning, at the beginning of our story ...