Onward through the dense foliage the two friends wound. Now and then they stopped to listen, but the rain was heavy enough to drown all other noises. Encountering fresh tracks finally, Dave leaned from his saddle and studied them. What he saw caused him to push forward with no diminution of stealth. He had gone perhaps half a mile when Bessie Belle raised her head, and he noted that her nostrils were working sensitively. A few yards farther on Law fancied that he could detect the smell of a wood fire. Almost without a signal from him the mare halted in her tracks until he had satisfied himself. Still farther along they came to a place where the brush was low, and there, rising through the tree-tops beyond, they saw a wavering plume of blue smoke. The Ranger rode into sight of the branding-fire with his Winchester across his saddle-horn and his thumb upon the hammer; what followed came with almost the blinding suddenness of a lightning crash, though afterward the events of that crowded moment lingered as a clear-cut memory. First there was the picture of a sandy glade in the center of which burned a fire with branding-irons in it, and a spotted calf tied to a tree, but otherwise no sign of life. Then, without warning, Bessie Belle threw up her head in that characteristic trick of hers, and simultaneously Dave saw a figure rise out of the grass at his left with rifle leveled. The Ranger remembered afterward the odd foreshortening of the weapon and the crooked twist of the face behind it. With the first jerk of his horse's head his own gun had leaped to his shoulder--he was not conscious of having willed it to do so--and even as he pressed the trigger he beheld a jet of smoke spurt from the muzzle aimed at him. With the kick of his carbine he felt Bessie Belle give way--it seemed to Dave that he shot while she was sinking. The next instant his feet, still in the stirrups, were on the ground and his horse lay between them, motionless. That nervous fling of her head had saved Dave's life, for the rustler's bullet had shattered her skull in its flight, and she lay prone, with scarcely a muscular twitch, so sudden had been her end. The breath escaped slowly from her lungs; it was as if she heaved a lingering sigh; one leg contracted and then relaxed. For a moment the Ranger was dazed. He stood staring down at his pet; then the truth engulfed him. He realized that he had ridden her to her death, and at the thought he became like a woman bereft of her child, like a lover who had seen his sweetheart slain. A shout--it was a hoarse, inarticulate cry; a swift, maddened scrutiny that searched the sodden scene of the ambush; then he was down beside the mare, calling her name heartbrokenly, his arms around her neck, his face against her warm, wet, velvet hide.