Zulu family with sorcerer, South Africa, ca.1920-1940

The postcard depicts a half-dozen Zulu men and women seated outdoors amid light scrub and brush.; The back of the postcard has no handwriting. Printed in the margin of the correspondence section is "Missions des Oblats de Marie Immaculee" "Zoulous - Toute la famille s'est rendue aupres de la sorciere. La question doit etre grave : que reserve le sort?