Tintin in the Congo and the stowaway is eaten by crocodiles. After reading a letter from the stowaway's pocket, Tintin finds that someone called "A.C." has ordered his elimination. Tintin captures a criminal who tried to rendezvous with the stowaway and learns that "A.C." is the American gangster Al Capone, who is trying to gain control of African diamond production. Tintin and the colonial police arrest the rest of the diamond smuggling gang and Tintin and Snowy return to Belgium. Georges Remi—best known under the pen name Hergé—was employed as editor and illustrator of (""The Little Twentieth""), a children's supplement to (""The Twentieth Century""),
The Adventures of Tintin 60 Years of Adventure" (1989), "Tintin: The Complete Companion" (2001), "Tintin & Co." (2007) and "The Adventures of Hergé" (2007), while English television producer Harry Thompson authored "Tintin: Hergé and his Creation" (1991). Literary critics, primarily in French-speaking Europe, have also examined "The Adventures of Tintin". In 1984, Jean-Marie Apostolidès published his study of the "Adventures of Tintin" from a more "adult" perspective as "Les Métamorphoses de Tintin", published in English as "The Metamorphoses of Tintin, or Tintin for Adults" in 2010. In reviewing Apostolidès' book, Nathan Perl-Rosenthal of "The New Republic" thought that it was "not for the faint