“But La,” cried he who had aroused Cadj’s anger in the garden, “I distinctly recall that La offered the friendship of Opar to Tarzan of the Apes upon that time, many moons ago, that he saved her from the tusks of infuriated Tantor.” “Silence,” growled Cadj, “he shall not enter; we shall slay them all, though we need not know their identity until it is too late. Do you understand? And know, too, that whosoever attempts to thwart my purpose shall die—and he die not as a sacrifice, he shall die at my hands, but die he shall. You hear me?” And he pointed an unclean finger at the trembling priest. Manu, the monkey, hearing all this, was almost bursting with excitement. He knew Tarzan of the Apes—as all the migratory monkeys the length and breadth of Africa knew him—he knew him for a friend and protector. To Manu the males of Opar were neither beast, nor man, nor friend. He knew them as cruel and surly creatures who ate the flesh of his kind, and he hated them accordingly. He was therefore greatly exercised at the plot that he had heard discussed which was aimed at the life of the great Tarmangani. He scratched his little gray head, and the root of his tail, and his belly, as he attempted to mentally digest what he had heard, and bring forth from the dim recesses of his little brain a plan to foil the priests and save Tarzan of the Apes. He made grotesque grimaces that were aimed at the unsuspecting Cadj and his followers, but which failed to perturb them, possibly because a huge granite block hid the little monkey from them. This was quite the most momentous thing that had occurred in the life of Manu. He wanted to jump up and down and dance and screech and jabber—to scold and threaten the hated Oparians, but something told him that nothing would be gained by this, other than, perhaps, to launch in his direction a shower of granite missiles, which the priests knew only too well how to throw with accuracy. Now Manu is not a deep thinker, but upon this occasion he quite outdid himself, and managed to concentrate his mind upon the thing at hand rather than permit its being distracted by each falling leaf or buzzing insect. He even permitted a succulent caterpillar to crawl within his reach and out again with impunity. Just before darkness fell, Cadj saw a little gray monkey disappear over the summit of the outer wall fifty paces from where he crouched with his fellows, waiting for the coming of the fighting men. But so numerous were the monkeys about the ruins of Opar that the occurrence left Cadj’s mind almost as quickly as the monkey disappeared from his view, and in the gathering gloom he did not see the little gray figure scampering off across the valley toward the band of intruders who now appeared to have stopped to rest at the foot of a large kopje that stood alone out in the valley, about a mile from the city.