TEEKA, STRETCHED AT luxurious ease in the shade of the tropical forest, presented, unquestionably, a most alluring picture of young, feminine loveliness. Or at least so thought Tarzan of the Apes, who squatted upon a low-swinging branch in a near-by tree and looked down upon her. Just to have seen him there, lolling upon the swaying bough of the jungle-forest giant, his brown skin mottled by the brilliant equatorial sunlight which percolated through the leafy canopy of green above him, his clean-limbed body relaxed in graceful ease, his shapely head partly turned in contemplative absorption...

Hauptmann Fritz Schneider trudged wearily through the somber aisles of the dark forest. Sweat rolled down his bullet head and stood upon his heavy jowls and bull neck. His lieutenant marched beside him while Underlieutenant von Goss brought up the rear, following with a handful of askaris the tired and all but exhausted porters whom the black soldiers, following the example of their white officer, encouraged with the sharp points of bayonets and the metal-shod butts of rifles.

Silent as the shadows through which he moved, the great beast slunk through the midnight jungle, his yellow-green eyes round and staring, his sinewy tail undulating behind him, his head lowered and flattened, and every muscle vibrant to the thrill of the hunt. The jungle moon dappled an occasional clearing which the great cat was always careful to avoid. Though he moved through thick verdure across a carpet of innumerable twigs, broken branches, and leaves, his passing gave forth no sound that might have been apprehended by dull human ears.

This novel continues where the previous one in the series, The Gods of Mars abruptly ended. At the end of the previous book, John Carter's wife, the princess Dejah Thoris, is imprisoned in the Temple of the Sun by the vile pretender goddess Issus. It is said one has to wait an entire Barsoomian year before the room the prisoner is in revolves back to the entrance.

The People That Time Forgot is a direct sequel to The Land That Time Forgot and continues the lost world saga begun in the earlier story. Burroughs continues the revelation of his lost world's unique biological system, only hinted at in the previous installment, in which the slow progress of evolution in the world outside is recapitulated as a matter of individual metamorphosis. This system forms a thematic element serving to unite the three otherwise rather loosely linked Caspak stories.