'For real, that is not a shadow, but an upright being squeezed up against the edge. Kind of like a human form with two arms and legs, a narrow, oval face framed by a cap looking like a bare skull, clothed in a blue overall that they only had a glimpse of previously. Dead quiet. Francois lowers the torch, lifts it again. One thing is for sure: this being is just as afraid as they are.'
From Die Hemelblom (The Heavenly Flower) by Jan Rabie, 2nd edition 1974, Tafelberg, first published 1971. Translated from the original Afrikaans by Nic Grobler.
The first encounter with Marwa, the main alien character in Die Hemelblom takes place in a collapsed cave near the Cederberg - she hold hands with the humans to make it out alive.