length, the whole forming a crude but substantial ladder. The purpose of all this Manu, of course, did not understand, nor did he know that it had been evolved from the fertile brain of Flora Hawkes as a means of scaling the precipitous kopje, at the summit of which lay the outer entrance to the treasure vaults of Opar. Nor did Manu know that the party had no intention of entering the city of Opar and were therefore in no danger of becoming victims of Cadj's hidden assassins. To him, the danger to Tarzan of the Apes was very real, and so, having regained his breath, he lost no time in delivering his warning to the friend of his people.
"Tarzan," he cried, in the language that was common to both.
The white man and the blacks looked up at the sound of his chattering voice.
"It is Manu, Tarzan," continued the little monkey, "who has come to tell you not to go to Opar. Cadj and his people await within the outer wall to slay you."
The blacks, having discovered that the author of the disturbance was nothing but a little gray monkey, returned immediately to their work, while the white man similarly ignored his words of warning. Manu was not surprised at the lack of interest displayed by the blacks, for he knew that they did not understand his language, but he could not comprehend why Tarzan failed to pay any attention whatsoever to him. Again and again he called
