Land of Black Gold
Hergé biographer Benoît Peeters stated that "no book has gone through more ups and downs" than "Land of Black Gold", adding that it carries a "mood of foreboding" caused by the impending war in the story. He also felt that the introduction of the Emir and Abdullah was "the most striking innovation in this story", and elsewhere declared that its earlier versions contained "not the slightest trace of anti-Semitism", despite allegations that a number of other "Adventures" featuring Jewish characters exhibited anti-Semitic stereotypes.