He was launched on a lecture upon his darling process before Challis could get in a word. It was best to let him have his head, and Challis took an intelligent interest.

It was not until the photographs were taken, and his two assistants could safely be trusted to complete the mechanical operations, that Elmer could be divorced from his hobby. He was full of jubilation. “We should have excellent results,” he boomed—he had a tremendous voice—“but we shan’t be able to judge until we get the blocks made. We do it all on the spot. I have a couple of platens in the shops here; but we shan’t be able to take a pull until to-morrow morning, I’m afraid. You shall have a proof, Challis. We should get magnificent results.” He looked benignantly at the vault of heaven, which had been so obligingly free from any current of air.

Challis was beginning to fear that even now he would be allowed no opportunity to open the subject of his mission. But quite suddenly Elmer dropped the shutter on his preoccupation, and with that ready adaptability which was so characteristic of the man, forgot his hobby for the time being, and turned his whole attention to a new subject.

“Well?” he said, “what is the latest news in anthropology?”

“A very remarkable phenomenon,” replied Challis. “That is what I have come to see you about.”

“I thought you were in Paraguay pigging it with the Guaranis——”

“No, no; I don’t touch the Americas,” interposed Challis. “I want all your attention, Elmer. This is important.”

“Come into my study,” said Elmer, “and let us have the facts. What will you have—tea, whisky, beer?”

Challis’s résumé of the facts need not be reported. When it was accomplished, Elmer put several keen questions, and finally delivered his verdict thus:

“We must see the boy, Challis. Personally I am, of course, satisfied, but we must not give Crashaw opportunity to raise endless questions, as he can and will. There is Mayor Purvis, the grocer, to be reckoned with, you must remember. He represents a powerful Nonconformist influence. Crashaw will get hold of him—and work him if we see Purvis first. Purvis always stiffens his neck against any breach of conventional procedure. If Crashaw saw him first, well and good, Purvis would immediately jump to the conclusion that Crashaw intended some subtle attack on the Nonconformist position, and would side with us.”