He found a map of the Rocky Mountain territory, but most of the space upon it was vague, often blank, and he could not exactly locate himself and Albert, although he knew that they were very far west of any settled country.
"I can learn from that book all about the world except ourselves," he said, as he put it back in his pocket. But he was not sulky over it. His was a bold and adventurous spirit and he was not afraid, nor was his present trip merely to satisfy curiosity. He and Albert must leave the valley some day, and it was well to know the best way in which it could be done.
He started across the plain in a general southwesterly direction, intending to travel for about a day perhaps, camp for the night, and return on the following day to his mountains. He walked along with a bold, swinging step and did not look back for an hour, but when he turned at last he felt as if he had ventured upon the open ocean in a treacherous canoe. There were the mountains, high, sheltered, and friendly, while off to the south and west the plains rolled away in swell after swell as long and desolate as an untraveled sea, and as hopeless.
Dick saw toward noon some antelope grazing on the horizon, but he was not a hunter now, and he did not trouble himself to seek a shot. An hour or two later he saw a considerable herd of buffaloes scattered about over the plain, nibbling the short bunch grass that had lived under the snow. They were rather an inspiring sight, and Dick felt as if, in a sense, they were furnishing him company. They drove away the desolation and loneliness of the plains, and his inclinations toward them were those of genuine friendliness. They were in danger of no bullet from him.
While he was looking at them, he saw new figures coming over the distant swell. At first he thought they were antelope, but when they reached the crest of the swell and their figures were thrown into relief against the brilliant sky, he saw that they were horsemen.
They came on with such regularity and precision, that, for a moment or two, Dick believed them to be a troop of cavalry, but he learned better when they scattered with a shout and began to chase the buffaloes. Then he knew that they were a band of Sioux Indians hunting.
The full extent of his danger dawned upon him instantly. He was alone and on foot. The hunt might bring them down upon him in five minutes. He was about to run, but his figure would certainly be exposed upon the crest of one of the swells, as theirs had been, and he dropped instead into one of a number of little gullies that intersected the plain.
It was an abrupt little gully, and Dick was well hidden from any eyes not within ten yards of him. He lay at first so he could not see, but soon he began to hear shots and the trampling of mighty hoofs. He knew now that the Sioux were in among the buffaloes, dealing out death, and he began to have a fear of being trodden upon either by horsemen or huge hoofs. He could not bear to lie there and he warned only by sound, so he turned a little further on one side and peeped over the edge of the gully.
The hunters and hunter were not as near as he thought; he had been deceived by sound, the earth being such a good conductor. Yet they were near enough for him to see that he was in great danger and should remain well hidden. He could observe, however, that the hunt was attended with great success. Over a dozen buffaloes had fallen and the others were running about singly or in little groups, closely pursued by the exultant Sioux. Some were on one side of him and some on the other. There was no chance for him, no matter how careful he might be, to rise from the gully and sneak away over the plain. Instead, he crouched more closely and contracted himself into the narrowest possible space, while the hunt wheeled and thundered about him.
It is not to be denied that Dick felt many tremors. He had seen what the Sioux could do. He knew that they were the most merciless of all the northwestern Indians, and he expected only torture and death if he fell into their hands, and there was his brother alone now in the valley. Once the hunt swung away to the westward and the sounds of it grew faint. Dick hoped it would continue in that direction, but by and by it came back again and he crouched down anew in his narrow quarters. He felt that every bone in him was stiffening with cramp and needlelike pains shot through his nerves. Yet he dared not move. And upon top of his painful position came the knowledge that the Sioux would stay there to cut up the slain buffaloes. He was tempted more than once to jump up, run for it and take his chances.