But Merriwell had no fear of that. If Nick Porter had ridden hard, he would already have had time to cover the distance between the mine and McGurvin's.

McGurvin's ranch was the last place, short of Happenchance in the Picket Post Mountains, where water could be secured. Surely, if Porter had come that way, he would stop at the ranch. He had left the mine too hurriedly to equip himself with water canteens and rations for a prolonged stay in the desert. Frank's hopes were mounting high as the motor cycles devoured the distance that separated their riders front McGurvin's.

At last, in fifteen or twenty minutes—certainly less than half an hour—the mad pace was slowed as the destination hove duskily into sight. A yellow gleam showed at one of the windows of the ranch house, and suggested that the proprietor might be entertaining a caller.

The machines were halted at a little distance from the dwelling, and Merry stole forward to reconnoiter, ere announcing himself in person to McGurvin. There was no curtain at the window through which shone the lamp-light, and the lad crept up to it and looked into the room. Only one man was visible, and that was the ranch owner himself. He sat by a table, reading.

"I guess we're off the track, Roper," said Frank, rejoining Clancy. "I can't see any one but McGurvin through the window, and he's spelling out the news in a paper. If Porter was there, he and McGurvin would certainly be together."

"Not so certainly, Chip." answered Chancy. "Let's look in the corral for a tired horse. If we find one, then surely it's Porter's, and Porter has got into the house and gone to bed."

Only one horse and a burro were found, and the horse showed no evidence of recent hard riding. Frank was deeply puzzled.

"If the prospector came this way," said he, "there would be nothing else for it but for him to stop here. He wouldn't dare go on into the desert without foot and water."

"Possibly he stopped, got what he wanted, and went on," Clancy hazarded.

"No, Clan. We can't be much more than half an hour from the mine; if we suppose that Porter had a full hour the start of us—it couldn't have been more than that—then he had only an hour and a half to ride here, and no time to pick up food and water and push his tired horse on into the desert. We'd better go back to Loco's and take the fork to Gold Hill."