Other works of note include a collection of Hindu tales, "Vikram and the Vampire" (1870); and his uncompleted history of swordsmanship, "The Book of the Sword" (1884). He also translated "The Lusiads", the Portuguese national epic by Luís de Camões, in 1880 and, the next year, wrote a sympathetic biography of the poet and adventurer. The book "The Jew, the Gipsy and el Islam" was published posthumously in 1898 and was controversial for its criticism of Jews and for its assertion of the existence of Jewish human sacrifices. (Burton's investigations into this had provoked hostility from the Jewish population in Damascus (see the Damascus affair). The manuscript of the book included an appendix discussing the topic in more detail, but by the decision of his widow, it was not included in the book when published).