Maria Petrovna dreamed of becoming an ideal nanny since childhood, but tried herself in this capacity only after several years of working as a school teacher. When she was offered to babysit three babies at once, she almost went crazy on the first day. In the story, written in the first person, the present is intertwined with the past, childhood memories with professional observations, and the fruits of the imagination with reality. Who will protect little Carolina and from whom should she be protected? Why is the Montessori method not so ideal? How should a modern Mary Poppins behave in an elite family? Olga Solntseva answers these and other questions with captivating sincerity and gentle humor. This elegant story will be of interest not only to parents and teachers, but also to a wide range of connoisseurs of modern Russian prose.