Misterix magazine would become both the media and the source of the finest comic strips of that era, and this would go on until it ceased being published in 1957. And it would be through its pages—as was the case with its counterpart publication Rayo Rojo—that Oesterheld would launch his first characters: Sergeant Kirk (drawn by Pratt); Bull Rockett (Campani); Ray Kitt (Pratt); El Indio Suárez (Freixas). Also featured were Kim de la nieve (Kim of the snow, drawn by Faustinelli); Drake, the Adventurer (by Ongaro and Freixas); Fuerte Argentino (by Almada—actually Portas—and Ciocca); and Mark Cabot (by Ongaro and Vogt); among other legendary titles.
A combination of factors—most of them financial—caused the golden age of comic magazines in Argentina to being to fade as the 1950s drew to a close. In addition to Abril's titles, others had joined the market, such as Patoruzito, Puño Fuerte, El Gorrión, Hacha Brava, Bucaneros, Superhombre, Batman, and the magazines from Columba publishing house, like D’Artagnan, El Tony, and Fantasía, the latter three still in existence at the time of this writing.
The first major devaluations of the Argentine peso threw production costs into disarray, international agencies lured artists and writers away with better pay, and publishing houses decided to pursue new ventures.