Daylight sometimes hides secrets that darkness will reveal-the Martian's glowing eyes, for instance. But darkness has other dangers.... Joseph Heidel looked slowly around the dinner table at the five men, hiding his examination by a thin screen of smoke from his cigar. He was a large man with thick blond-gray hair cut close to his head. In three more months he would be fifty-two, but his face and body had the vital look of a man fifteen years younger. He was the President of the Superior Council, and he had been in that post-the highest post on the occupied planet of Mars-four of the six...