Elvire Murail (born 7 June 1958, in Le Havre) is a French writer, mainly author of books for youth under the pen name Moka. The daughter of poet , she is the younger sister of writers Marie-Aude and Lorris Murail, and composer Tristan Murail. Biography A graduate of University of Cambridge, she began her literary career with adult novels. She enjoyed success with her first book, Escalier C, which was brought to the cinema by Jean-Charles Tacchella in 1984. After signing four novels for adults, she entered youth literature in 1989 under the pseudonym Moka. She signed with this pseudonym more than seventy novels for the youth, published mainly at in the "Mouche", "Nine" and "Medium" series. These novels were for the most part books of mysteries between police and fantasy for adolescents from 10 to 15 years old. Since 1996, she has been committed to defending a quality youth literature within the "Charte des Auteurs et Illustrateurs pour la Jeunesse" of which she was treasurer from 1999 to 2007. She was also the Permanent Commissioner for General Affairs of Sofia () until 2007. She is a member of the Société des gens de lettres and the société des auteurs et compositeurs dramatiques. She also works as a screenwriter and dialogue writer for film and television. Literary works Under her name 1983: Escalier C 1984: La Plume de perroquet 1987: Les Mannequins d'osier 1990: Bingo ! Under the pseudonym Moka La Lanterne bleue, 1991, illustrations by Yvan Pommaux Ailleurs (trilogy) Ailleurs, rien n'est tout blanc ou tout noir, 1991 Le puits d'amour, 1992 A nous la belle vie, 1994 Je m'excuse, 1992, illustrations by Serge Bloch Ma vie de star, 1992, illustrations by Olivier Matouk Chipies et les Inventeurs, 1992, illustrations by Fabienne Teyssèdre Un phare dans le ciel, 1993 Thomas Face-de-Rat et Amélie Mélasse, 1993, illustrations by Mette Ivers Souï-Manga, 1993, illustrations by Joëlle Jolivet L'enfant des ombres, 1994 Trois-Pommes, 1994, illustrations by Catherine Rebeyrol Nous, les filles, 1995, illustrations by Éric Heliot Ma vengeance sera terrible, 1995, illustrations by Anaïs Vaugelade La marque du diable, 1996 Mon loup, 1996, illustrations by Mette Ivers Derrière la porte, 1997 La chose qui ne pouvait pas exister, 1997 Ah, la famille !, 1997, illustrations Mette Ivers Un ange avec des baskets , 1998 Williams et nous, 1998 Vilaine fille, 1999 Bon à rien, 1999, illustrations Catherine Rebeyrol Cela, 2000 L'écolier assassin,