“There is but one place we have not sought,” Huamachaco had said. “That temple so sacred! Those men and youths with dyed skins, as the Spaniard has told us—they would profane its very sanctuary with their vile presence. Come—you shall see!”

Tom proposed, in his halting quichua, that he and Caya’s brother press through the throng; but the young soldier had a better plan. “No,” he said. “I have learned the way. We go to the lower level from the Inca’s palace—even that I dare for you!—and then we shall see if the way is clear to the old water way. I will wait there and you shall bring your friends. Come. I show the way.”

The palace was deserted: all minds and all eyes were focused on the temple.

“Let’s lose no time!” whispered Tom, and the two youths made all the haste they could. They were already in the passages when from the mob around the Sun Temple came a deep, throaty roar—the throaty, deep lust-cry of a mob thirsting for vengeance for a seeming insult to their temple!

The Inca had gone in with his aide and then had hurried to the doorway again to signal that they had found their prey.

At the foot of the steps in the treasure room Bill sent Nicky up to tell his friends to be ready, to see if Cliff had returned to them safely and to learn what they knew of Tom.

Nicky walked up the steps, cautiously, and found himself facing the Inca and his chief priest and the Spaniard. In their fury the nobles had overlooked the insult of the Spaniard’s entry into the sacred chamber.

Nicky saw at once that he had blundered into a trap. John Whitley, Mr. Gray, and Cliff faced the angry noble and the Inca, desperately, not knowing what to do. The crowd in the square gave them no chance to escape that way. They could not know that the passages were not already invaded by soldiers. Indeed, there were detachments already coming from the palace.

Far away down a lateral passageway Caya’s brother showed Tom the place where, when the tunnels were made, an opening had been left into an old waterway; in case of menace to the treasures, a former Inca had provided a way to flood the tunnels.

The young soldier began as quietly as he could to tear away the old debris that had collected, while Tom hurried back along the tunnel, making careful note of the way, planning to tell his friends to hurry, that the way for escape was found!