"I'm not often anxious about her," he said slowly. "But it is a long walk through the wildest part of the Divide. She's got nothing but a pistol and a lantern that won't shine. Besides--I've had bad dreams." "You don't mean--" Dan's words came hard--"that she's in any danger from the animals--the cougars--or the wolves?" "Barring accidents, no. But, Dan--I want you to go. I'm resting fairly easily, and there's whisky on the table in case of a pinch. Someway--I can't bar accidents to-night. I don't like to think of her on those mountains alone." And remembering what had lain beside the trail, Dan felt the same. He had heard, long ago, that any animal that has once tasted human flesh loses its fear of men and is never to be trusted again. Some wild animal that still hunted the ridges had, in the last month, done just that thing. He left the room and walked softly to the door. The night lay silent and mysterious over the Divide. He stood listening. The girl had started only an hour before, and it was unlikely that she could have traversed more than two miles of the steep trail in that time. He could fancy her toiling ever upward, somewhere on the dark ridge that lay beyond. Although the horse ordinarily did not climb a hill more swiftly than a human being, he didn't doubt but that he could overtake her before she went three miles farther. But where lay his duty,--with the injured man in the house or with the daughter on her errand of mercy in the darkness? Then the matter was decided for him. So faint that it only whispered at the dim, outer frontiers of hearing, a sound came pricking through the darkness. Only his months of listening to the faint sounds of the forest, and the incredible silence of the night enabled him to hear it at all. But he knew what it was, the report of a pistol. Snowbird had met an enemy in the darkness. He called once to Lennox, snatched the shotgun that still stood where he had placed it in the corner of the room, and hastened to the corral. The mare whickered plaintively when he took her from her food. X Even in the darkest night, there is one light that never brings hope or cannot lead. It is not a twinkling, joyous light like that mysterious will-o'-the-wisp that now and again has lured travelers into the marshes to their death. Nor can any one ever mistake it, or be soothed and cheered by it. It always appears the same way,--two green circles, close together, in the darkness. When Snowbird first heard the step in the thickets beside her, she halted bravely and held her lantern high. She understood at last. The very extremity of the beams found a reflection in two very curious circles of greenish fire: a fire that was old upon the world before man ever rubbed two sticks together to strike a flame. Of course the dim rays had simply been reflected on the eyes of some great beast of prey.