The war forced them to leave. The truth will make them collide. When love ceases to be mutual, it becomes dangerous. "Sister" is a novel about boundaries that cannot be crossed without consequences. _______________________ German Gennadievich Knyazev (b. 1967, Gorky / Nizhny Novgorod) is a novelist and publicist. In Russia, he was engaged in entrepreneurship and social journalism, and participated in public activities. He has been living in Germany since 2023. The author of the psychological novel "Sister", which explores the themes of emigration, marriage crisis, personal responsibility and inner freedom. His prose combines a confessional intonation, attention to the details of everyday life and a rigorous analysis of human relations.