Reaching the brow of a stunted hill, Amelia paused in bewilderment at the sight of a towering contraption made of metal. It appeared to be a chute propped up on legs, tilted at a steep angle. Her attention was caught by a minor commotion farther afield … two men emerging from behind a small wooden shelter … they were shouting and waving their arms at her. Amelia instantly realized she had stumbled into danger, even before she saw the smoldering trail of sparks move, snakelike, along the ground toward the metal c