Jessica Феллоуз is an author of the best sellers of "The New York Times" about a cult serial "Abbey of Даунтон" and niece of his creator, lord Феллоуза. She also got the deserved fame as an unique connoisseur of life of Great Britain of the XX century.1920 year. Louisa Кэннон desperately is a strain at the leash from the paws of poverty. Her rescue - to become a nursemaid in the known aristocratic family. Here she is drawn together with senior daughter of lord, Nancy, clever not on to the years by a girl. Together they appear pulled in investigation of enigmatic murder of sister of mercy, heroine of First world war, - the murder accomplished in a train straight in the middle of white day. So history of sisters of Митфорд, six really existing women scandalously known in the whole world begins.