The next instant they, too, were prone on the floor, with Harry and me on top of them. They did not succumb without a struggle, and the one I had chosen proved nearly too much for me.
The great muscles of his chest and legs strained under me with a power that made me doubtful for a moment of the outcome; but the Incas themselves had taught us how to conquer a man when you attack him from behind, and I grasped his throat with all the strength there was in my fingers.
With a desperate effort he got to his knees and grasped my wrists in his powerful black hands and tore my own grip loose. He was half-way to his feet, and far more powerful than I; I changed my tactics. Wrenching myself loose, I fell back a step; then, as he twisted round to get at me, I lunged forward and let him have my fist squarely between the eyes.
The blow nearly broke my hand, but he dropped to the floor. The next instant I was joined by Harry, who had overcome the other Inca with little difficulty, and in a trice we had them both bound and gagged along with the remainder of the family in the corner.
Owing to my strategy in withholding our attack until the Incas had got well within the room and to one side, we had not been seen by those constantly passing up and down in the corridor without; at least, none of them had entered. We seemed by this stroke to have assured our safety so long as we remained in the room.
But it was still necessary to remain against the wall, for the soft patter of footsteps could still be heard in the corridor.
They now came at irregular intervals, and there were not many of them. Otherwise the silence was unbroken.
"What does it all mean?" Harry whispered.
"The Incas are coming home to their women," I guessed. "Though, after seeing the women, it is little wonder if they spend most of their time away from them. He is welcome to his repose in the bosom of his family."
There passed an uneventful hour. Long before it ended the sound of footsteps had entirely ceased; but we thought it best to take no chances, and waited for the last minute our impatience would allow us. Then, uncomfortable and stiff from the long period of immobility and silence, we rose to our feet and made ready to start.