Brigands of the Moon

Gregg Haljan was aware that there was a certain danger in having the giant spaceship Planetara stop off at the moon to pick up Grantline''s special cargo of moon ore. For that rare metal - invaluable in keeping Earth''s technology running - was the target of many greedy eyes. But nevertheless he hadn''t figured on the special twist the clever Martian brigands would use. So when he found both the s...