Ever smaller and smaller grew the opening. In a short time now it would be too small even to permit the slender form of my Princess to pass. Oh, why did not Xodar haste. Above we could hear the faint echoes of a great tumult. It was the multitude of black and red and green men fighting their way through the fire from the burning Temple of Issus.

A draught from above brought the fumes of smoke to our nostrils. As we stood waiting for Xodar the smoke became thicker and thicker. Presently we heard shouting at the far end of the corridor, and hurrying feet.

"Come back, John Carter, come back!" cried a voice, "even the pits are burning."

In a moment a dozen men broke through the now blinding smoke to my side. There was Carthoris, and Kantos Kan, and Hor Vastus, and Xodar, with a few more who had followed me to the temple court.

"There is no hope, John Carter," cried Xodar. "The keeper of the keys is dead and his keys are not upon his carcass.

Our only hope is to quench this conflagration and trust to fate that a year will find your Princess alive and well. I have brought sufficient food to last them. When this crack closes no smoke can reach them, and if we hasten to extinguish the flames I believe they will be safe."