Brigands of the Moon by Ray Cummings

This Halcyon Classics ebook is the early sci-fi thriller BRIGANDS OF THE MOON by Ray Cummings.

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 sh…