J.-H. Rosny jeune

J.-H. Rosny jeune was the pseudonym of Séraphin Justin François Boex, a French author of Belgian origin who, along with his better known older brother J.-H. Rosny aîné, is considered one of the founding figures of modern science fiction. Born in Brussels in 1859, until 1909 he wrote together with his older brother Joseph Henri Honoré Boex under the pen name J.-H. Rosny. After they ended their collaboration Joseph Boex continued to write under the name J.-H. Rosny aîné while Séraphin used "Rosny jeune".