 The two men quickly became good friends, and decided to work together in 1952 at the newly opened Paris office of the Belgian company, World Press.Their first creations were the characters Oumpah-pah, Jehan Pistolet and Luc Junior.In 1958 they adapted "Oumpah-pah" for serial publication in the Franco-Belgian comics magazine "Tintin", where it ran until 1962.