The author - teacher (teacher of "Ethics and Psychology of Family Life") talks about his work in a colony for underage girls. "Living" with the author day after day in the colony, readers willy-nilly are involved in the struggle for these seemingly missing girls. The manuscript is in the nature of pedagogical reflections, the author pays special attention to the analysis of the reasons that led the girls to crimes in order to draw the attention of parents and teachers to the processes of forming difficult characters. A book intended for the teacher will also be useful to parents.