a young man gifted seems to give a hard time to Arsene Lupin, though. Who knows if it does not pull the strings? .... We are witnessing the police investigation and follow the reflections and deductions investigators or the young man (Isidore Bautrelet): herrings, manipulations, disguises Lupin great love and tragedy .The final "tour" of the Aiguille d'Etretat stimulates the imagination: a good Maurice Leblanc