There were ten passengers in the little pressurized cabin of the electric bus that shuttled between the rocket field and Marsport. Ten men, the driver - and Bruce Gordon. He sat apart from the others, as he had kept to himself on the ten-day trip between Earth and Mars, with the yellow stub of his ticket still stuck defiantly in the band of his hat, proclaiming that Earth had paid his passage without his permission being asked. His big, lean body was slumped slightly in the seat. There was no expression on his face...