"Yes. You remember how the branch vein in the two-hundred-foot level was bearing off to the east?"
"I do."
"Well, three weeks ago the sloping carried us over into the Mary Mattock ground, and I tell you what, Jimmie, I was more than glad we had bought that claim outright while we could. The ore is richer than anything we have found since we made the big strike at grass-roots, and we'd be up against it good and hard if we hadn't paid those Nebraska farmers what they asked and taken a clear title to the ground."
"But the mystery," I reminded him.
"It is a little trick of acoustics, I guess; it has happened in other mines, so Hicks tells me. Some peculiar geological structure of the porphyry in particular localities makes it carry sound like a telephone wire. In that eastern adit of ours you can hear them working in the Lawrenceburg as plainly as if they were only a few feet away."
"That is odd," I mused; "especially as the Lawrenceburg workings are all in exactly the opposite direction—down the hill on their side of the spur."
Barrett thrust his hands deep into his pockets.
"I have often wondered, Jimmie, if they really are downhill. Nobody, outside of the men on their own pay-roll, knows anything about it definitely; and Blackwell wouldn't let an outside engineer go down his shaft for a king's ransom. I know it, because I have tried to send one. If the downhill story that we've been hearing should happen to be a fake; if he should be under-cutting us, instead; it would explain a heap of things."
"The stubborn lawsuit among others," I offered.
"Yes; the lawsuit. By the way, we've been up to our necks in that while you've been hiding out. Blackwell's lawyers succeeded in persuading the Federal court to grant a temporary injunction, in spite of everything we could do, and we are operating now under an indemnity bond big enough to make your head swim. The hearing to determine whether the injunction shall be dissolved or made permanent is timed for next Monday."