Edgar Rice Burroughs,
Pellucidar
(1962)
“ He had covered but a short distance from the forest when I beheld the first of his pursuers--a Sagoth, one of those grim and terrible gorilla-men who guard the mighty Mahars in their buried cities, faring forth from time to time upon slave-raiding or punitive expeditions against the human race of Pellucidar, of whom the dominant race of the inner world think as we think of the bison or the wild sheep of our own world. ”
