In La frousse aux trousses, Spirou and Fantasio never tried to travel to Touboutt-Chan but the two journalists have trouble finding the funds until Doctor Placebo funded the trip.
In La frousse aux trousses, Spirou and Fantasio intend to make a journey to Touboutt-Chan in order to clarify the fate of Adrien Maginot and Gunter Siegfried, who disappeared in the 1930s while seeking a mythical place in this area of the world, the Valley of the Outlaws. 
