Career
His evening career was as a dramatist of terror. During daytimes he worked as a librarian in the Bibliothèque de l"Arsenal. He wrote 150 plays, all of them devoted mainly to the exploitation of terror and insanity, and a few novels.
Foreign plays the subject matter of which concerned mental illness he sometimes collaborated with psychologist Alfred Binet, the developer of intelligence quotient testing.
During the 1920s de Lorde was elected "Prince of Fear" (Prince de la Terreur) by his peers.