“What is it?” he whispered.

In silence I pointed with my finger to where two Incas stood in the passage ahead of us, just without the patch of light from the doorway, which they were facing.  They made no movement; we were as yet undiscovered.  They were about a hundred feet away from where we stood.

“Then she’s here!” whispered Harry.  “They are on guard.”

I nodded; I had had the same thought.

There was no time to lose; at any moment that they should chance to glance in our direction they were certain to see us.  I whispered hastily and briefly to Harry.  He nodded.

The next instant we were advancing slowly and noiselessly, hugging the wall.  We carried our spears ready, though we did not mean to use them, for a miss would have meant an alarm.

“If she is alone!” I was saying within myself, almost a prayer, when suddenly one of the Incas turned, facing us squarely, and gave a start of surprise.  We leaped forward.

Half a dozen bounds and we were upon them, before they had had time to realize their danger or move to escape it.  With a ferocity taught us by the Incas themselves we gripped their throats and bore them to the floor.

No time then for the decencies; we had work to do, and we crushed and pounded their lives out against the stone floor.  There had not been a sound.  They quivered and lay still; and then, looking up at some slight sound in the doorway, we saw Desiree.

She stood in the doorway, regarding us with an expression of terror that I did not at first understand; then suddenly I realized that, having seen us disappear beneath the surface of the take after our dive from the column, she had thought us dead.

“Bon Dieu!” she exclaimed in a hollow voice of horror.  “This, too!  Do you come, messieurs?”

“For you,” I answered.  “We are flesh and bone, Desiree, though in ill repair.  We have come for you.”

“Paul!  Harry, is it really you?”

Belief crept into her eyes, but nothing more, and she stood gazing at us curiously.  Harry had sprung to her side; she did not move as he embraced her.

“Are you alone?”

“Yes.”

“Good.  Here, Harry—­quick!  Help me.  Stand aside, Desiree.”

We carried the bodies of the two Incas within the room and deposited them in a corner.  Then I ran and brought the spears, which we had dropped when we attacked the Incas.  Desiree stood just within the doorway, seemingly half dazed.

“Come,” I said; “there is no time to be lost.  Come!”

“Where?” She did not move.

“With us.  Isn’t that enough?  Do you want to stay here?”

She shuddered violently.

“You don’t know—­what has happened.  I want to die.  Where are you going to take me?”

“Desiree,” Harry burst out, “for Heaven’s sake, come!  Must we carry you?”

He grasped her arm.