Never before had La passed beyond the crumbling outer walls of Opar; but never before had need been so insistent. The sacred knife was gone! Handed down through countless ages it had come to her as a heritage and an insignia of her religious office and regal authority from some long–dead progenitor of lost and forgotten Atlantis. The loss of the crown jewels or the Great Seal of England could have brought no greater consternation to a British king than did the pilfering of the sacred knife bring to La, the Oparian, Queen and High Priestess of the degraded remnants of the oldest civilization upon earth. When Atlantis, with all her mighty cities and her cultivated fields and her great commerce and culture and riches sank into the sea long ages since, she took with her all but a handful of her colonists working the vast gold mines of Central Africa. From these and their degraded slaves and a later intermixture of the blood of the anthropoids sprung the gnarled men of Opar; but by some queer freak of fate, aided by natural selection, the old Atlantean strain had remained pure and undegraded in the females descended from a single princess of the royal house of Atlantis who had been in Opar at the time of the great catastrophe. Such was La.

Burning with white–hot anger was the High Priestess, her heart a seething, molten mass of hatred for Tarzan of the Apes. The zeal of the religious fanatic whose altar has been desecrated was triply enhanced by the rage of a woman scorned. Twice had she thrown her heart at the feet of the godlike ape–man and twice had she been repulsed. La knew that she was beautiful—and she was beautiful, not by the standards of prehistoric Atlantis alone, but by those of modern times was La physically a creature of perfection. Before Tarzan came that first time to Opar, La had never seen a human male other than the grotesque and knotted men of her clan. With one of these she must mate sooner or later that the direct line of high priestesses might not be broken, unless Fate should bring other men to Opar. Before Tarzan came upon his first visit, La had had no thought that such men as he existed, for she knew only her hideous little priests and the bulls of the tribe of great anthropoids that had dwelt from time immemorial in and about Opar, until they had come to be looked upon almost as equals by the Oparians. Among the legends of Opar were tales of godlike men of the olden time and of black men who had come more recently; but these latter had been enemies who killed and robbed. And, too, these legends always held forth the hope that some day that nameless continent from which their race had sprung, would rise once more out of the sea and with slaves at the long sweeps would send her carven, gold–picked galleys forth to succor the long–exiled colonists.

The coming of Tarzan had aroused within La's breast the wild hope that at last the fulfillment of this ancient prophecy was at hand; but more strongly still had it aroused the hot fires of love in a heart that never otherwise would have known the meaning of that all–consuming passion, for such a wondrous creature as La could never have felt love for any of the repulsive priests of Opar. Custom, duty and religious zeal might have commanded the union; but there could have been no love on La's part. She had grown to young womanhood a cold and heartless creature, daughter of a thousand other cold, heartless, beautiful women who had never known love. And so when love came to her it liberated all the pent passions of a thousand generations, transforming La into a pulsing, throbbing volcano of desire, and with desire thwarted this great force of love and gentleness and sacrifice was transmuted by its own fires into one of hatred and revenge.