Of all the charlatans who travelled west of the United States, no one exploited the public credulity with more furiousness than Dr. Samuel Doxey, inventor, preparer and seller of his famous elixir. Scraggy's talents as an actor during the demonstrations helped to trick the population of each village crossed. But one day Doxey and Scraggy crossed Lucky Luke and stole his horse. From then on, Lucky Luke would stop finding these two impostors. Manhunting: Pre-publication in Spirou (787 to 808) in 1953 Doxey managed to escape and was shaved beard and moustache to go unnoticed. Using a new strategy to deceive the inhabitants, Doxey renamed Oxyde, managed to keep a distance with Lucky Luke who was after him and thus make his business prosper. Lucky Luke, in the end tracker, managed to find Dr. Doxey's retorts and brought him back to the prison of Oxbow-Gulch.