Looking up, he saw a silvery bullet that tore through the atmosphere, then recognized the unexpected hum and whine of thrusters. A bubble-shaped object plummeted through the sky, spun about and see-sawed in the open air as if choosing a place to land. Quad engines slowed its descent. Then, less than a kilometer from where the scavenging party stood, the object slammed into the dunes like a fist thumping into the stomach of a dishonest merchant. A spray of dust and sand shot upward, embracing a tendril of dark soot!