Comic characters never age. But one morning, Tintin-Lutin and Captain Shellfish are shocked to realize that they are getting older. They set out to find their creator and discover that behind the myth of Hergé lies a womanizer and street thug who illustrated advertising posters for fascists, drew anti-Semitic cartoons for the Nazis, and was later banned from his profession and lost his civil rights due to collaboration after the war. The author grew up with Tintin, his mother tongue is French. He has read all biographies and interviews in the original language and has included over 150 footnotes and references.