But there were other things: the myriad tintinnabulations of these microscopic bells, never ceasing, musically throbbing; and now, the exotic delight of the softest of perfumes, an air barely tinted with violet and rose, and the breath of woodland wild flowers. He could not comprehend it. He looked at the purple clouds above the lotus sun, hardly believing, and deeply in doubt.

A great white bird dived suddenly out of the heavens and flew into the focus of his vision. In all the tales of his boyhood, of large and beautiful rocs and other birds, he had come across nothing like this. From the perspective it must have measured a full three hundred feet from tip to tip; it was shaped like a swan and flew like an eagle, with magnificent, lazy sweeps of the wings; while its plumage was as white as the snow, new fallen on the mountains. And right behind it, in pursuit, hurtled a huge black thing, fully as large and just as swift; a tremendous black crow, so black that its sides gave off a greenish shimmer.

Just then the woman closed the window. It was as well; Watson was only human, and he could hide his curiosity just so long and no longer. He turned to the Rhamda.

The man nodded. “I thought so,” said he with satisfaction, as one might who has proven a pet and previous theory.

Watson tried from another angle.

“Just who do you think I am, sir?”

The other smiled as before. “It is not what I may think,” he replied: “but what I know. You are the proof that was promised us by the great Rhamda Avec. You are—THE FACT AND THE SUBSTANCE!”

He waited for Watson's answer. Stupefaction delayed it. After a moment the Rhamda continued:

“Is it not so? Am I not right? You are surely out of the occult, my dear sir. You are a spirit!”

It took Chick wholly by surprise. He had been ready to deal with anything—but this. It was unreal, weird, impossible. And yet, why not? The professor had set out to remove forever the screen that had hitherto shrouded the shadow: but what had he revealed? What had the Spot disclosed? Unreality or REALITY? Which is which?