Why don't we know more about our princesses' past? Why do they always seem to be a secret? Twilight Sparkle believes she has just found another secret of theirs. And this one seems to be more about their family.
After escaping from the dungeons of Arendelle, she secludes herself in the Mountains, away from the Kingdom and all the memories she had. During her isolation, she searches for a way to melt the ice and end the winter she caused.