This book tells the adventures of a young girl - the daughter of an admiral - in Indochina in the 30s and is a scrum despite herself opium trade and must lead his small investigation to save his reputation and that of his father. The level of writing, very simple, making it accessible from 8 years and 12 years. In addition, it may lack flavor: the story and the characters lack depth. I recommend rather for teenage girls who love historical novels with a little romance, the novel "Heloise" of Gwenaële BARUSSAUD, me much more confident.