The story of boys, witnesses and participants in the struggle against autocracy after the revolution of 1905. This book is a boy's story about the days and events of a long summer, about his family and friends, about various adventures. The boy is the most ordinary, and his family - the family of a naval doctor - is not big or small, not poor or rich, did not differ in anything from many and many families. But the time about which it is told was special.