Hergé was asked by Le Soir to draw a weekly supplement, similar to that he did in Le Petit Vingtième, called Le Soir Jeunesse. He agreed and he began to work on a new story about the much less controversial issue of drug smuggling. After the finish of The Seven Crystal Balls in 1944 The Adventures of Tintin were published in the newly-created Tintin Magazine from 1946 onwards.