heroine's choice

Katya, daughter of a blacksmith in the northern regions of Siberia, Lived with her father and brother in one single household after her mother died of frostbite. One faithful day her brother got into trouble with the archduke of the duchy's guard, her making the ultimate choice by offering herself for her brother's freedom, but things take a strange turn when the arch duke says something that changes her life. does she survive or die sacrificing herself in the end?