By the spring morning of 1951 eleven-year chemistry lover and gifted detective Флавия de Люс together with native leaves on train station to meet the a long ago disappearing mother Harriet. A few instants prior to arriving of train on the platform of the English hamlet of Бишоп-Лейси a high stranger from crowd whispers on an ear to the girl some enigmatic report, and in a next second perishes under the wheels of locomotive, thus obviously: someone on purpose pushed away him on rails.Who was this man? Why did he decide to pass the message exactly of Флавии? And what was meant by his last phrase?.In search of answers a young detective finds out on the garret of old mansion of Букшоу a movie film, a record on that helps to expose the great number of surprizing secrets of eccentric family her de Люс, thus in them appears Winston is complicit Черчилль! Флавия is ready on everything - even to rocket in sky on biplane the "Blue ghost", belonging Harriet, - to know a true about the mother.