An excellent police officer of exciting plot novel, part of an innocuous, unexpected and somewhat wacky (for us, so little attention to the obvious things). The characters, colorful yet simple and endearing, are revealed to us through the pages, according to the novels by Fred Vargas, with modesty and sobriety. Louis, the Rhine child takes us, shakes us, harassing us, urges us, as his friends, in his wanderings with a stubbornness never boring, peppered with humor, until the denouement of the plot, we guessed, then rejects, and again considered ... In short, Louis Ludwig we ride takes us with him in his luggage and we follow as we follow a friend when he needed us to solve a problem . A must read.