In this decade Bonvi created an adult science fiction series, "Cronache del dopobomba" ("After the Bomb Chronicles"), featuring a grotesque post-apocalyptic world, as well as the fictional detective "Milo Marat" (for the French market, with Mario Gomboli), and his most serious comic book, "L'uomo di Tsushima" ("The Man of Tsushima"). For the latter's protagonist Bonvi used again his face as that of the US author Jack London, one of his favourite writers. In 1973 Bonvicini was named Best European Cartoonist receiving the Prix Saint-Michel.