Created the character of Bob Morane in 1953 with the first episode of
his series of novels (then comic books) 'La Vallée Infernale' (released
on December 16, 1953).
He was a secret agent during WWII and he used numerous pseudonyms.
He published over 200 titles in the action and science-fiction genre.
In 1946 he moved to Paris and wrote for a while for an American news agency and French newspapers. Still, he continued writing novels. In 1949 he published La Belle Nuit pour un Homme Mort (Good Night for a Dead Man), and moved back to Belgium.