Finally she gasped out, in a sobbing voice, her story.

The Incas were not usually a cruel people, and it was almost unheard of for them to make a human sacrifice to their gods. But, in some great crisis of their community, they were known to resort to such methods to appease their gods.

Such a crisis was the attack of the insects upon their corn.

And they were planning a sacrifice to induce Raymi, their god, to look down with favor on their crop and destroy the menace to their future food supply.

In great buildings far from the everyday life of the tribe they kept certain chosen maidens who were employed in the service of the Sun-god, spinning and weaving tapestries, garments and ornamental cloth. From among these a sacrifice was chosen, when the rare occasion came for such a terrible need.

“They have—chosen—my—sister!” sobbed Caya.

“Goodness!” exclaimed Nicky. “We must do something to stop them.”

“We can’t interfere in their religious rites,” warned Bill, sadly but seriously.

The girl grovelled before Cliff, as though, being the messenger from the stars he must be able to help her.

Cliff felt very badly. It was outrageous and inhuman, this thing those people planned to do.