“He must be a great god,” said Leonard, alluding to the size of the statue.

“He is great,” she answered, “and my heart is afraid at the sight of him.”

After resting for two hours they marched on again, and soon it became apparent that their movements were watched. The roadway which they were following—if a track beaten flat by the feet of men and cattle could be called a road—wound to and fro between boulders of rock, and here and there standing upon the boulders were men clad in goat-skins, each of them carrying a spear, a bow and a horn. So soon as their party came within five or six hundred yards of one of these men, he would shoot an arrow in their direction, which, when picked up, proved to be barbed with iron, and flighted with red feathers like the first that they had seen. Then the sentry would blow his horn, either as a signal or in token of defiance, bound from the rock, and vanish. This did not look encouraging, but there was worse to come. Presently, as they drew near to the city, they descried large bodies of armed men crossing the river that surrounded it in boats and on rafts, and mustering on the hither side. At length all of them were across, and the regiment, which appeared to number more than a thousand men, formed up in a hollow square and advanced upon them at the double.

The crisis was at hand.

Chapter XX.
THE COMING OF ACA

Leonard turned and looked at his companions with something like dismay written on his face.

“What is to be done now?” he said.

“We must wait for them until they come near,” answered Juanna, “then Otter and I are to meet them alone, and I will sing the song which Soa has taught me. Do not be afraid, I have learned my lesson, and, if things go right, they will think that we are their lost gods; or, at least, so Soa says.”

“Yes, if things go right. But if they don’t?”

“Then good-bye,” answered Juanna, with a shrug of her shoulders. “At any rate, I must get ready for the experiment. Come, Soa, bring the bundle to those rocks over there—quick! Stop a minute—I forgot, Mr. Outram, you must lend me that ruby. I have to make use of it.”