"I didn't—that night. But the next morning——"

The hydrographer's smile was a jocose grimace.

"I recollect now; you said that one of the motorists was a young woman."

Brouillard resented the implication irritably.

"Don't be an ass, Murray," he snapped; and then he went on, with the frown of impatience still wrinkling between his eyes. "The young woman was the daughter. There was a cub of a son, and he fired a stick of dynamite in the river to kill a mess of trout. I heard the explosion and thought it might be the gasolene tank of the car."

"Naturally," said Grislow guilelessly. "And, quite as naturally, you went down to see. I'm not sure that I shouldn't have done it myself."

"Of course you would," was the touchy retort. "When I got there and found out what had happened, I meant to make a second drop-out; but Cortwright and his daughter were coming up the trail, and he hailed me. After that I couldn't do less than the decent thing. They wanted to see the valley, and I showed them the way in. Cortwright is the multimillionaire pork packer of Chicago, and he went up into the air like a lunatic over the money-making chances there were going to be in this job. I didn't pay much attention to his chortlings at the time. It didn't seem remotely credible that anybody with real money to invest would plant it in the bottom of the Niquoia reservoir."

"But now you think he is going to make his bluff good?"

"That looks very much like it," said Brouillard sourly, pointing to the letter from Washington. "That scheme is going to change the whole face of Nature for us up here, Grislow. It will spell trouble right from the jump."

"Oh, I don't know," was the deprecatory rejoinder. "It will relieve us of a lot of side-issue industries—cut 'em out and bury 'em, so far as we are concerned."