A twist of the lantern to the left sent a luminous bar of light along the breast of the darn, and revealed a jagged break, fully six feet wide, through which the freed water poured with the speed of a millrace. The chasm was barely a dozen feet from where the Pioneer had lodged, and Ned's first thought was one of gratitude for his own escape. Then he remembered with a thrill of horror what had happened a moment or two before. Which of his companions had been carried through the break, and where was the unfortunate lad now?