A dubious suicide, too rapid investigation. A feeling of not factual oddity. A factory, a region, wood and wood. A flu Commissioner, a young Lieutenant free and enterprising, taking over the investigation. Clues that appear and that change gradually the situation. Different means but which do not deviate enough from the central frame. One end without surprise. A book well written, with a certain slowness, but reads well. Is it worth the price of the dock goldsmiths? Mystery ...