At first La closed her eyes and clung to Tarzan in terror, though she made no outcry; but presently she gained sufficient courage to look about her, to look down at the ground beneath and even to keep her eyes open during the wide, perilous swings from tree to tree, and then there came over her a sense of safety because of her confidence in the perfect physical creature in whose strength and nerve and agility her fate lay. Once she raised her eyes to the burning sun and murmured a prayer of thanks to ............