Question: What French author wrote the novel that the 1953 French-Italian film the wages of war was adapted from?

Context articles: Thérèse Raquin (1953 film)
The Slave (1953 film)
Little World of Don Camillo
Voice of Silence (1953 film)
Georges Arnaud
I Chose Love
Alarm in Morocco
Koenigsmark (1953 film)
The Wages of Fear
The Most Wanted Man

Thérèse Raquin (also The Adultress) is a 1953 French-Italian drama film directed by Marcel Carné and starring Simone Signoret and Raf Vallone.
 The story is loosely based on the novel of the same title by Émile Zola but updated to 1953.
 It was screened at the 14th Venice International Film Festival where it won the Silver Lion.
The Slave (French: "L'esclave" , Italian: "Schiavitù" ) is a 1953 French-Italian drama film directed by  Yves Ciampi and starring  Daniel Gélin, Eleonora Rossi Drago and Barbara Laage.
Le Petit Monde de don Camillo ("The Little World of don Camillo"), or Don Camillo in Italian, is a 1952 French-Italian film directed by Julien Duvivier, starring Fernandel and Gino Cervi.
 It was the first film in the ""Don Camillo"" series, which made Fernandel an international star.
 The film was based on the novel "Don Camillo" by author Giovannino Guareschi.
 It was followed in 1953 by "The Return of Don Camillo", also directed by Duvivier.
Voice of Silence (Italian: La voce del silenzio , French: La maison du silence ) is a 1953 French-Italian drama film directed by Georg Wilhelm Pabst, written by Giuseppe Berto, starring Aldo Fabrizi and Jean Marais.
Henri Girard (1917 - 1987) is a French author who used the pseudonym Georges Arnaud.
 He was born in France, in Montpellier.
 He is the author of the novel "The Wages of Fear" (French: "Le salaire de la peur" ).
I Chose Love (French: J'ai choisi l'amour, Italian: Ho scelto l'amore) is a 1953 French-Italian comedy film directed by Mario Zampi and starring Renato Rascel and Marisa Pavan.
 It was shot at the Cinecittà studios in Rome.
Alarm in Morocco (French: Alerte au sud, Italian: Allarme a sud) is a 1953 French-Italian adventure film directed by Jean-Devaivre and starring Jean-Claude Pascal, Gianna Maria Canale and Erich von Stroheim.
 Partly shot on location in Morocco, it was made using the Gevacolor process.
Koenigsmark is a 1953 French-Italian drama film directed by Solange Térac and starring Jean-Pierre Aumont, Silvana Pampanini and Renée Faure.
 It is an adaptation of Pierre Benoît's 1918 novel of the same title.
 The film's sets were designed by the art director Robert Dumesnil.
The Wages of Fear (French: Le salaire de la peur ) is a 1953 French-Italian thriller film directed by Henri-Georges Clouzot, starring Yves Montand, and based on the 1950 French novel "Le salaire de la peur" (lit.
 "The Salary of Fear") by Georges Arnaud.
 When an oil well owned by an American company catches fire, the company hires four European men, down on their luck, to drive two trucks over mountain dirt roads, loaded with nitroglycerine needed to extinguish the flames.
 The film brought Clouzot international fame, and allowed him to direct "Les Diaboliques".
 In France the film was the 4th highest-grossing film of the year with a total of 6,944,306 admissions.
The Most Wanted Man (French: "L'ennemi public n° 1" , Italian: "Il nemico pubblico n° 1" ) is a 1953 French-Italian comedy film directed by Henri Verneuil.