La Mine d'or de Dick Digger
 In Dirk Digger's Gold Mine, Lucky Luke and Jolly Jumper meet an old friend, the prospector Dirk Digger in extasty over a recent gold ore discovery, en route to register his gold mine claim in Nugget City. Celebrating loudly at a saloon, Digger is identified as a target of robbery by two hardened criminals, and after assaulting him alone in his room, they get away with his gold and a map leading to the gold find. The following day, Lucky Luke and Jolly Jumper take up pursuit following their trail. In The Look-Alike of Lucky Luke, Luke discovers he causes fear in the inhabitants of a town, because he is remarkably similar to a notorious fellain named Mad Jim, currently in prison and scheduled for hanging. Spotted by two thugs who are Mad Jim's associates, Luke is ambushed and knocked out in a scheme to replace him with the doppelgänger in a drunken sherrif's jail cell, in order to get a share of Mad Jim's loot. Taken without doubt for the dangerous villain, Lucky Luke barely escapes the mob lynching before he is able to pursue the criminals and bring them to justice.