"All right," he whispered. "Let me walk."

So I let him slip down to his feet in front of me, and holding him beneath the armpits repeated our lock-step trick with positions reversed; and when we reached the outer door that gave on to the narrow main passage he was going fairly strong. The Mahatma opened the door and stepped out into the light; but it was the strange peculiarity of that light that it did not flow beyond its appointed boundaries, and we continued to be in darkness as long as we did not follow him through the door.

So when King stepped out ahead of me, the Mahatma had no means of knowing what a mistake he had been making all along. He naturally jumped to the conclusion that King had been carrying me.

When I stepped out of the pitch blackness he looked more than a little surprised at my appearance, and I grinned back at him as sheepishly as I could manage, hoping he would not see the red patch on my shoulder caused by the pressure of King's weight, or the scratches made by King's fingernails when he was beginning to recover consciousness. Nevertheless, he did see, and understood.

"Lead on, MacDuff!" I said in plain English, and perhaps he did not dislike me so immensely after all, for he smiled as he turned his back to lead the way.

We passed, without meeting anybody, out through the narrow door where the first tall speechless showman had admitted us, into the cave where the lingam reposed on its stone altar; and there the Mahatma resumed the lantern he had left.

When we climbed the oval stairway and emerged on the platform under the cupola the dawn was just about to break. The Gray Mahatma raised the stone lid with an ease that betrayed unsuspected strength and dropped it into place, where it fitted so exactly that no one ignorant of the secret would ever have guessed the existence of a hidden stairway.

Swinging his lantern the Mahatma led into the temple, where the enormous idols loomed in quivering shadow, and made straight for the biggest one of all—the four-headed one that faced the marble screen. I thought he was going to bow down and worship it. He actually did go down on hands and knees, and I turned to King in amazement, thus missing my chance to see what he was really up to.

So I don't know how he managed it; but suddenly the whole lower part of the idol, including the thighs, swung outward and disclosed a dark passage, into which he led us, and the stone swung back into place at our backs as if balanced by weights.

At the far end the Mahatma led into a square-mouthed tunnel, darker if that were possible than the vaulted gloom we had left, and as we entered in single file I thought I heard the splashing of water underneath.