The Peasant's Promise

Princess Elsa Arendelle and Princess Anna Arendelle are now the only royals still living at the palace. Their parents, King Adgar and Queen Idun, were shipwrecked at sea. No one knows why, but the palace doors were shut during their daughters' childhood.
Not even Princess Anna.
Elsa has a secret...a secret that she thinks could bring the kingdom apart and put her to death. She has ice magic. Anna doesn't even know because the rock trolls took away her memory of Elsa ever hurting her.
Anna has knocked on Elsa's door every day for twelve years. But suddenly, she just...stopped. Elsa feels horrible for abandoning her sister, but she believed it is the only way to protect Anna, and herself.
But one day, Elsa escapes the frozen walls of her room and decides to explore.
What she doesn't know is her life is about to change.
Who is the peasant Jackson Overland? Will he be able to thaw her frozen heart?