Walking to the edge of the Box she looked down unflinchingly. There was plenty time. When everything was dark and quiet, it would be easy to take the sleeping child in her arms; then neither man nor law could take him from her. CHAPTER TWENTY-THREE Doctor Powell, lured by Chappo's description of the cave on Jackson trail, had reached the place an hour after Katherine and Donnie had started for the Box. It was while examining the designs on the various bits of pottery that he found fragments of broken geodes, and eagerly continued his search, which was rewarded with several specimens that were unbroken. Powell, who was deeply interested in geology, knew there were few places where the curious white crystals were found, and his delight was augmented when he discovered two of them in which the water could be distinctly heard; moisture which had fallen on hot lava that had hardened too quickly to allow evaporation. He was engaged in wrapping these rare specimens in his handkerchief, when he heard his horse whinny, and as he moved to the entrance of the cave, noticed Fox and Pet picking their way down the steep trail. He saw the saddles and that the ponies were tied together, so concluded the horses had broken away and were homeward bound, leaving Katherine and Donnie afoot higher up on the trail. Powell waited until the ponies stood beside his horse. Then he moved quietly and secured them with his tie-rope, and mounted his horse to lead the strays up the trail. He had no thought of any danger to Katherine or Donnie, until a turn in the trail revealed the top of the climb and a woman standing perilously near the edge of the cliff. He dared not call out, for fear of startling her and precipitating a tragedy; but he dropped the rope of the two horses and urged his own forward. Beads of perspiration stood on his forehead and his teeth bit into his lower lip. The horse puffed and stumbled, for the big Spanish spurs slashed its sides without mercy. Fox and Pet scrambled behind, the tie-ropes dragging on the ground. He reached the summit and closed his eyes, fearing he was too late. With a throb of relief he saw Katherine still poised at the edge of the Box, while bits of decomposed earth crumbled unnoticed beneath her feet. He realized her danger. Chappo had spoken of the treacherous shale overhanging the Box. So engrossed was the woman that she did not hear him slip from his horse and hasten noiselessly to her side; but, when his hand grasped her arm, gently, yet firmly, she turned in shrinking fear that changed to piteous appeal when she saw it was Powell, not Glendon, who stood beside her. The man read the tragedy in her eyes. Slowly he drew her from the danger point, speaking quietly as he did so.