He also wrote many novels aimed at adolescents, such as Two kids around the world (1908) and A 15-year-old aviator (1926). Twelve-year-old Hairy (1920), The Panther Hunter (1928), and also The Little Detective (1934), police adventures in the Paris region (with the exception of episodes taking place in Morocco against a terrorist group, led by "the Renovator"), combine adventure or war tales with detective genre. Arnould Galopin also created in 1911 Ténébras, the phantom bandit, rival of Fantômas, and, the previous year, in The Dark Green Park Affair, Detective Allan Dickson, one of the prototypes of the detective Harry dickson, the mythical hero of Jean Ray.
