"Yes."

Lidgerwood's swing-chair "righted itself to the perpendicular with a snap."

"Mac, the Red Butte mines are looking up a little, and there is a good bit of house-building going on in the camp just now: tell me, what man or men in the company's service would be likely to be taking a flyer in Red Butte real estate?"

"I don't know of anybody. Gridley used to be interested in the camp. He went in pretty heavily on the boom, and lost out—so they all say. So did your man out there in the pig-pen desk," with a jerk of his thumb to indicate the outer office.

"They are both out of it," said Lidgerwood shortly. Then: "How about Sullivan, the west-end supervisor of track? He has property in Red Butte, I am told."

"Sullivan is a thief, all right, but he does it openly and brags about it; carries off a set of bridge-timbers, now and then, for house-sills, and makes a joke of it with anybody who will listen."

Lidgerwood dismissed Sullivan abruptly.

"It is an organized gang, and it must have its members pretty well scattered through the departments—and have a good many members, too," he said conclusively. "That brings us to the disappearance of the switching-engine again. No one man made off with that, single-handed, Mac."

"Hardly."

"It was this gang we are presupposing—the gang that has been stealing lumber and lime and other material by the car-load."