Maylis Noguère de Formont... A very pretty surname, sometimes difficult to bear for a young girl today. Maylis lives with a demanding mother who gives herself the airs of a bourgeois and a father who takes refuge in silence. A letter arrives from a Landes village inviting them to the centenary of M. de Formont, Maylis's great-grandfather. How? She thought he was dead! Through Éliette, her original and dynamic grandmother, the young girl discovers her family until she finds among her ancestors a very significant figure in history. Bearing a name does not prove that in our veins flows the famous blue blood. Maylis will learn that true nobility is not that of the name, but that of the heart.