But competition grew steadily keener, other promoters followed their lead, and it became necessary to introduce new and original methods of gathering an audience. Mere vocal persuasiveness did not serve to arrest the flow of pedestrians, and so McWade's ingenuity was taxed. But he was equal to the task; seldom did he fail of ideas, and, once he had the attention of a crowd, the rest was easy.
One morning he and his partner provided themselves with some dice and several hundred dollars in gold coin. With these they began shooting craps on the sidewalk in front of their office. Now gambling was taboo, hence the spectacle of two expensively dressed, eminently prosperous men squatting upon their heels with a stack of double eagles before them caused a sensation, and people halted to witness their impending arrest. Soon traffic was blocked.
The gamblers remained engrossed in their pastime, as well they could, having thoughtfully arranged the matter with the policeman on duty; gravely they breathed upon the cubes; earnestly they called upon "Little Joe," "Long Liz," "Ada," and the rest; silently they exchanged their stacks of gold pieces as they won or lost.
Calvin Gray, but just arrived from Dallas, looked on at the game with some curiosity, not divining its purpose, until McWade pocketed the dice, then mounted a box at the curb and began, loudly:
"Now, gentlemen, that is one way of making money, but it is a foolish and a hazardous way. There is a much saner, safer method, and I'm going to tell you about it. Don't pass on until you hear me, for I have a most incredible story to relate, and you'll be sorry you missed it."
There was a ripple of appreciative laughter, but the crowd pressed closer as the orator continued:
"You've all heard about these 'doodlebugs' who go around locating oil with a divining rod, haven't you? And you don't believe in them. Of course you don't. Neither do I. I can't put any trust in willow twigs, but—we'll all admit that there are forces of nature that we don't understand. Who can explain the principle of magnetic attraction, for instance? What causes the glowing splendor of the Aurora Borealis? What force holds the compass needle to the north? What makes a carpet tack jump onto a magnet like"—the speaker paused and stared hard at a member of his audience who had passed a humorous remark at his expense—"just like I'll jump you, stranger, if you don't keep your trap closed. I say who can read those secrets, who can harness those forces? The man who can has got the world by the tail and a downhill pull. Now then, for the plot of my story, and it will pay you to do a week of listening in the next five minutes. Awhile ago an eminent scientist, unknown to me or to my partner, Mr. Stoner, came into our office, which is at your backs, one flight up, second door to the right, and showed us an electrical device he has been working on for the last eight years. He claimed he had it perfected and that it would indicate the presence of oil on the same principle that one mineral attracts another. 'Oil is a mineral,' said he, 'and I think I've got its magnetic complement. I believe my invention will work.'
"'I'll bet a thousand dollars it won't,' I told him. But what do you think that pilgrim did? He took me up. Then he bet Stoner another thousand that I'd made a bad bet." McWade grinned in sympathy with the general amusement. "We arranged a thorough test. We took him, blindfolded, through the field, and, believe me or not, he called the turn on forty-three wells straight and never missed it once. Call it a miracle if you choose, but it cost Brick and me two thousand iron men, and I've got ten thousand more that says he can do the trick for you. I'll let a committee of responsible citizens take a dozen five-gallon cans and fill one with oil and the rest with water and set them in a row behind a brick wall. My ten, or any part of it, says his electric wiggle stick will point to the one with the oil. What do you say to that? Here's a chance for a quick clean-up. Who cares to take me on?"
From the edge of the crowd Gray watched the effect of this offer. Divining rods, he well knew, were as old as the oil industry, but he was surprised to see that fully half of this audience appeared to put faith in the claim, and the other half were not entirely skeptical. A man at his side began reciting an experience of his own.
McWade now introduced the miracle worker himself, and Gray rose on tiptoe to see him. A moment, then he smiled widely, for the eminent scientist was none other than Mr. Mallow—Mallow, a bit pallid and pasty, as if from confinement, and with eyes hidden behind dark goggles. With a show of some embarrassment, the inventor displayed his tester, a sufficiently impressive device with rubber handles and a resistance coil attached to a dry battery, which he carried in his pocket.