This, in Judson's prefiguring, was a small matter. The tall man, whom the ex-engineer had unmistakably recognized at the moment of train-forsaking as Rankin Hallock, was doubtless on his way to Flemister's head-quarters at the foot of the western slope. Why he should take the roundabout route up the old spur and across the mountain, when he might have gone on the train to Little Butte station and so have saved the added distance and the hard climb, was a question which Judson answered briefly: for some reason of his own, Hallock did not wish to be seen going openly to the Wire-Silver head-quarters. Hence the drop from the train at Silver Switch and the long tramp up the gulch and over the ridge.

Forecasting it thus, Judson lost no time on the summit of mysterious disappearances. Choosing the shortest path he could find which promised to lead him down to the mining hamlet at the foot of the westward-fronting slope, he set his feet in it and went stumbling down the steep declivity, bringing up, finally, on a little bench just above the mine workings. Here he stopped to get his breath and his bearings. From his halting-place the mine head-quarters building lay just below him, at the right of the tunnel entrance to the mine. It was a long log building of one story, with warehouse doors in the nearer gable and lighted windows to mark the location of the offices at the opposite end.

Making a détour to dodge the electric-lighted tunnel mouth, Judson carefully reconnoitred the office end of the head-quarters building. There was a door, with steps giving upon the down-hill side, and there were two windows, both of which were blank to the eye by reason of the drawn-down shades. Two persons, at least, were in the lighted room; Judson could hear their voices, but the thick log walls muffled the sounds to an indistinct murmur. On the mountain-facing side of the building, which was in shadow, the ex-engineer searched painstakingly for some open chink or cranny between the logs, but there was no avenue of observation either for the eye or the ear. Just as he had made up his mind to risk the moonlight on the other side of the head-quarters, a sound like the moving of chairs on a bare floor made him dodge quickly behind the bole of a great mountain pine which had been left standing at the back of the building. The huge tree was directly opposite one of the windows, and when Judson looked again the figure of a man sitting in a chair was sharply silhouetted on the drawn window-shade.

Judson stared, rubbed his eyes, and stared again. It had never occurred to him before that the face of a man, viewed in blank profile, could differ so strikingly from the same face as seen eye to eye. That the man whose shadow was projected upon the window-shade was Rankin Hallock, he could not doubt. The bearded chin, the puffy lips, the prominent nose were all faithfully outlined in the exaggerated shadowgraph. But the hat was worn at an unfamiliar angle, and there was something in the erect, bulking figure that was still more unfamiliar. Judson backed away and stared again, muttering to himself. If he had not traced Hallock almost to the door of Flemister's quarters, there might have been room for the thin edge of the doubt wedge. The unfamiliar pose and the rakish tilt of the soft hat were not among the chief clerk's remembered characteristics; but making due allowance for the distortion of the magnified facial outline, the profile was Hallock's.

Having definitely settled for himself the question of identity, Judson renewed his search for some eavesdropping point of vantage. Risking the moonlight, he twice made the circuit of the occupied end of the building. There was a line of light showing under the ill-fitting door, and with the top step of the down-hill flight for a perching-place one might lay an ear to the crack and overhear. But door and steps were sharply struck out in the moonlight, and they faced the mining hamlet where the men of the day shift were still stirring.

Judson knew the temper of the Timanyoni miners. To be seen crouching on the boss's doorstep would be to take the chance of making a target of himself for the first loiterer of the day shift who happened to look his way. Dismissing the risky expedient, he made a third circuit from moon-glare to shadow, this time upon hands and knees. To the lowly come the rewards of humility. Framed level upon stout log pillars on the down-hill side, the head-quarters warehouse and office sheltered a space beneath its floor which was roughly boarded up with slabs from the log-sawing. Slab by slab the ex-engineer sought for his rat-hole, trying each one softly in its turn. When there remained but three more to be tugged at, the loosened one was found. Judson swung it cautiously aside and wriggled through the narrow aperture left by its removal. A crawling minute later he was crouching beneath the loosely jointed floor of the lighted room, and the avenue of the ear had broadened into a fair highway.

Almost at once he was able to verify his guess that there were only two men in the room above. At all events, there were only two speakers. They were talking in low tones, and Judson had no difficulty in identifying the rather high-pitched voice of the owner of the Wire-Silver mine. The man whose profile he had seen on the window-shade had the voice which belonged to the outlined features, but the listener under the floor had a vague impression that he was trying to disguise it. Judson knew nothing about the letter in which Flemister had promised to arrange for a meeting between Lidgerwood and the ranchman Grofield. What he did know was that he had followed Hallock almost to the door of Flemister's office, and that he had seen a shadowed face on the office window-shade which could be no other than the face of the chief clerk. It was in spite of all this that the impression that the second speaker was trying to disguise his voice persisted. But the ex-engineer of fast passenger-trains was able to banish the impression after the first few minutes of eavesdropping.

Judson had scarcely found his breathing space between the floor timbers, and had not yet overheard enough to give him the drift of the low-toned talk, when the bell of the private-line telephone rang in the room above. It was Flemister who answered the bell-ringer.

"Hello! Yes; this is Flemister.... Yes, I say; this is Flemister; you're talking to him.... What's that?—a message about Mr. Lidgerwood?... All right; fire away."

"Who is it?" came the inquiry, in the grating voice which fitted, and yet did not fit, the man whom Judson had followed from his boarding of the train at Angels to Silver Switch, and from the gulch of the old spur to his disappearance on the wooded slope of Little Butte ridge.