Tintin au pays de l'or noir
Hergé was planning on creating a story in which Tintin travels to the moon, but his wife Germaine and close friend Marcel Dehaye both advised him to revive "Land of Black Gold" instead, recognising that it would entail less work and thus cause him less stress. Thus, "Land of Black Gold" was revived after an eight-year hiatus. In a letter to Germaine, he stated that "I don't like to restart things that are already finished, or to make repairs. "Black Gold" was a repair, and I abandoned it".