Greg Hunter. Test pilot--happy only when his life hung in the balance.
Tom Hunter. A pioneer--his frontier was hidden in test tubes.
Johnny Coombs. A prospector--he returned from the asteroids too soon.
Merrill Tawney. An industrialist--he sought plunder even beyond the
stars.
Major Briarton. A government man--his creed was law and order.
[Illustration: They fought with whatever was handy, not bothering to
figure the odds.]