Will through the glasses saw them quite plainly now, more than a score of dark figures, advancing slowly but quite steadily. He threw the glasses over his shoulder and took up his rifle with both hands.
"Not yet, young William," said the Little Giant. "We don't want to waste any bullets, and so we'll wait until Jim gives the word. Ev'ry army needs a leader. Thar ain't but three in this army, but it hez to hev a leader jest the same and Jim Boyd is the man."
Will waited motionless, but he could not keep his heart from beating hard, as the Sioux, ruthless and bold, came forward silently to the attack. He did not have the infinite wilderness experience of the older two which had hardened them to every form of danger, and his imagination was alive and leaping. The dusky forms which he could now faintly see with the naked eye were increased by fancy threefold and four, and his eager finger slipped to the trigger of his rifle. He was sure they ought to fire now. The Sioux were certainly near enough! If they came any closer before meeting the bullets of the defense they would have a good chance to spring up and make a victorious rush. But the word to fire did not come. He glanced at their leader, and Boyd was still calmly watching.
The three lay very close together, and Will heard the hunter whisper to the Little Giant:
"How much nearer do you think I ought to let 'em come, Tom?"
"'Bout ten feet more, I reckon, Jim. Then though it's night, thar would be no chance fur a feller to miss, onless he shet his eyes, an' we want all our bullets to hit. Indians, even the bravest, don't like to rush riflemen that are ez good ez a batt'ry. Ef we strike 'em mighty hard the first time they'll fall back on tricks an' waitin'."
"Good sound reasoning, Tom. You hear, Will. Be sure you don't miss."
"I won't," replied the lad. Nevertheless those ten minutes, every one of them, had a way of spinning themselves out in such an extraordinary manner that his nerves began to jump again, and it required a great effort of the will to keep them quiet. The black shadows were approaching. They had passed over a stretch of rough ground that he had marked four or five minutes before, and the outlines of the figures were growing more distinct. He chose one on the extreme right for his aim. He could not yet see his features, of course, but he was quite certain that they were ugly and that the man was a warrior wicked beyond belief. Before he could fire upon anyone from ambush it was necessary for him to believe the man at whom he aimed to be utterly depraved, and the situation created at once such a belief in his mind.
He kept his eye steadily upon the ugly and wicked warrior, and as he watched for his chance and awaited the word from Boyd all scruples about firing disappeared from his mind. It was that warrior's life or his, and the law of self-preservation controlled. Nearer and yet nearer they came and the time had grown interminable when the hunter suddenly said in a low voice:
"Fire!"