Lonely or not, the man had a gun that could spang death clear to the horizon, and he had his beasts, and there would be a radio in the rocketboat for calling his fellows. And the glowing death ringed them in, a charmed circle which Kreega could not cross without bringing a worse death on himself than the rifle would give—
Or was there a worse death than that—to be shot by a monster and have his stuffed hide carried back as a trophy for fools to gape at? The old iron pride of his race rose in Kreega, hard and bitter and unrelenting. He didn't ask much of life these days—solitude in his tower to think the long thoughts of a Martian and create the small exquisite artworks which he loved; the company of his kind at the Gathering Season, grave ancient ceremony and acrid merriment and the chance to beget and rear sons; an occasional trip to the Earthling settling for the metal goods and the wine which were the only valuable things they had brought to Mars; a vague dream of raising his folk to a place where they could stand as equals before all the universe. No more. And now they would take even this from him!
He rasped a curse on the human and resumed his patient work, chipping a spearhead for what puny help it could give him. The brush rustled dryly in alarm, tiny hidden animals squeaked their terror, the desert shouted to him of the monster that strode toward his cave. But he didn't have to flee right away.
iordan sprayed the heavy-metal isotope in a ten-mile circle around the old tower. He did that by night, just in case patrol craft might be snooping around. But once he had landed, he was safe—he could always claim to be peacefully exploring, hunting leapers or some such thing.
The radioactive had a half-life of about four days, which meant that it would be unsafe to approach for some three weeks—two at the minimum. That was time enough, when the Martian was boxed in so small an area.
There was no danger that he would try to cross it. The owlies had learned what radioactivity meant, back when they fought the humans. And their vision, extending well into the ultra-violet, made it directly visible to them through its fluorescence—to say nothing of the wholly unhuman extra senses they had. No, Kreega would try to hide, and perhaps to fight, and eventually he'd be cornered.
Still, there was no use taking chances. Riordan set a timer on the boat's radio. If he didn't come back within two weeks to turn it off, it would emit a signal which Wisby would hear, and he'd be rescued.
He checked his other equipment. He had an airsuit designed for Martian conditions, with a small pump operated by a power-beam from the boat to compress the atmosphere sufficiently for him to breathe it. The same unit recovered enough water from his breath so that the weight of supplies for several days was, in Martian gravity, not too great for him to bear. He had a .45 rifle built to shoot in Martian air, that was heavy enough for his purposes. And, of course, compass and binoculars and sleeping bag. Pretty light equipment, but he preferred a minimum anyway.