"No," was the quick reply, "no, but I have a think coming on that, too. My old prospector says he couldn't make out very well in the dark, but it seemed to him as if the engine which hauled away our bridge-timbers didn't have any tender. How does that strike you?"

Lidgerwood grew thoughtful. The missing engine was of the "saddle-tank" type, and it had no tender. It was hard to believe that it could be hidden anywhere on so small a part of the Red Butte Western system as that covered by the comparatively short mileage in Timanyoni Park. Yet if it had not been dumped into some deep pot-hole in the river, it was unquestionably hidden somewhere.

"Benson, are you sure you went over all the line lying west of the Gloria bridge?" he asked pointedly.

"Every foot of it, up one side and down the other ... No, hold on, there is that old spur running up on the eastern side of Little Butte; it's the one that used to serve Flemister's mine when the workings were on the eastern slope of the butte. I didn't go over that spur. It hasn't been used for years; as I remember it, the switch connections with the main line have been taken out."

"You're wrong about that," said Lidgerwood definitely. "McCloskey thought so too, and told me that the frogs and point-rails had been taken out at Silver Switch—at both of the main-line ends of the 'Y',—but the last time I was over the line I noticed that the old switch stands were there, and that the split rails were still in place."

Benson had been tilting comfortably in his chair, smoking his pipe, but at this he got up quickly and looked at his watch.

"Say, Lidgerwood, I'm going back to the Park on Extra 71, which ought to leave in about five minutes," he said hurriedly. "Tell me half a dozen things in just about as many seconds. Has Flemister used that spur since you took charge of the road?"

"No."

"Have you ever suspected him of being mixed up in the looting?"

"I haven't known enough about him to form an opinion."