Thus do the bulls work themselves to the proper pitch before engaging in battle.
Gunto came, stiff-legged, close to Tarzan and sniffed at him, with bared fangs. Tarzan rumbled forth a low, menacing growl. They might repeat these tactics a dozen times; but sooner or later one bull would close with another and then the whole hideous pack would be tearing and rending at their prey.
Bulabantu, the black man, had stood wide-eyed in wonder from the moment he had seen Tarzan approaching through the apes. He had heard much of this devil-god who ran with the hairy tree people; but never before had he seen him in full daylight. He knew him well enough from the description of those who had seen him and from the glimpses he had had of the marauder upon several occasions when the ape-man had entered the village of Mbonga, the chief, by night, in the perpetration of one of his numerous ghastly jokes.
Bulabantu could not, of course, understand anything which passed between Tarzan and the apes; but he saw that the ape-man and one of the larger bulls were in argument with the others. He saw that these two were standing with their back toward him and between him and the balance of the tribe, and he guessed, though it seemed improbable, that they might be defending him. He knew that Tarzan had once spared the life of Mbonga, the chief, and
