"Major Frank" is a fascinating historical and intriguing romantic book by the famous Dutch writer Anna Louise Gertrude Bosbohm-Toussaint. In this work, the author reveals the complex relationships and fates of the main characters in times of military conflicts and social changes. The events of the novel take place in an era when the confrontation between Ukrainian Cossacks and Polish nobles, as well as Russian troops, is intensifying. In this background context, the life stories of the main characters, full of love, loyalty, betrayal and struggle for their own happiness, develop. Thanks to the skillful combination of historical events and the psychological depth of the characters, the book "Major Frank" captivates readers with its dynamics, unexpected twists and shades of feelings. This is a generous and sophisticated work that gives an opportunity to delve into the world of past events and feel the colorful experiences of the characters.