Asterix and the Black Gold forgot to bring rock oil. When Chief Vitalstatistix tells Asterix and Obelix to fetch another druid to treat him, they discover Dubbelosix, who successfully revives Getafix with an alcoholic tonic. Asterix determines to go with Obelix and Dogmatix to obtain rock oil from Mesopotamia; Dubbelosix insists on coming, and they set off on Ekonomikrisis' ship. Along the way, they defeat pirates and Roman warships, while Dubbelosix secretly corresponds with the Romans, to arrange a blockade. The Phoenician ship finally lands at Judea, where Asterix, Obelix, Dogmatix, and Dubbelosix disembark for Jerusalem, where some sympathetic traders help the Gauls to enter
Nero (comic book character) came true. In "Het Knalgele Koffertje" ("The Bright Yellow Case") (1958–1959) Nonkel Juul appears, head of the biggest diamond mine of Transvaal. In "De Adhemarbonbons" ("The Adhemar Pralines") (1989) Nero's grandmother turns up and in "Bompanero" (1997) his grandfather. Whether this grandfather is the same character appearing in "De Ark van Nero" ("Nero's Arc") is not made clear. As one of the most famous comic book characters in Flanders Nero received his own statue in Hoeilaart, near an old streetcar station in 1994. It was originally made in polyester, but changed to bronze in 2004. The sculptor is Luc Cauwenberghs.