Author, Original work · 12 titles
The master of the macabreBook· 2013Author
O Cavaleiro da Máscara NegraFilm· 1963Original work
Patrulha FantasmaFilm· 1962Original work
Courageous exploits of Doctor SynBook· 1939Author
Doctor SynFilm· 1937Original work
Doctor Syn ReturnsBook· 1935Author
The VandekkersBook· 1929Author
Doctor Syn on the High SeasBook· 1920Author