"That made me mad. I had come down a very nasty piece of climbing to get that halter, and I was bound to secure that bit of leather if I had to scramble down the gorge to the very bed of the river itself. So, as soon as I could find a way to start down, I went on and reached the mare, this time resting on a wide ledge where I could disentangle the halter with but very little trouble.

"I had gained the object of my quest, I had found out the cause of the accident to the horse, and I had recovered the halter, but in the achievement of these purposes I found myself two hundred feet down the gorge and I knew that it would be a great deal harder to get up that distance than it had been to get down, and even the latter had been no easy matter. Of course, my assistant was up above, and had been watching the proceedings, all the while, so that I knew he would get at me from the top in the course of time.

"I was anxious, however, to get back the way that I had come without taking a long trip to one of the side canyons, and after losing some time, and also some skin from knees and elbows and other parts of my body, I got back to the place where the horse had first lain. My assistant dropped me a rope—there is always a long rope carried by each party—and I climbed up that rope."

"Swarmed up a rope a hundred and seventy-five feet high!" ejaculated Roger, then, with a whistle, he added, "that's an awful climb."

"It was not a straight hand over hand climb, my boy," answered Masseth quietly. "You must remember that all those walls are in terraces and every other line of strata would give a ledge. Of course, in some parts they were overhanging and that made it all the harder, but there were plenty of places to rest on the way up and in due course I reached the top. That was the first misadventure, and I hope it will be the last in any of my camps in Grand Canyon work."

"And what part of the work are you doing now, Mr. Masseth?" queried the boy.

"I was just waiting for you to complete the party," was the reply. "We are going to tackle the Tourist's trail, that is the one I was telling you about, and will go up the other side. Then, from the north side, I will pick out a number of points which I want you—with other members of the party—to occupy. You will then do some work under my assistant, while I cross back to this side, and on an appointed day we will strike a level across the nine-miles gap."

"Then we will be working together though miles apart?" asked the boy in surprise.

"Yes, and months apart, too."

"But how in the world can you do that?" was the amazed response. "Do you carry a wireless telegraph outfit in your vest pocket, Mr. Masseth? Is there anything the Survey can't do?"