got out his supply of food concentrates, saw that he had only three capsules left, and 
put them away again. For a long time, he sat under the dying tree, chewing on a twig and 
thinking. There must be some way in which he could overcome, or even utilize, his 
inherent deadliness to these people. He might find some isolated community, conceal 
himself near it, invade it at night and infect it, and then, when everybody was dead, move 
in and take it for himself. But was there any such isolated community? The farmhouse 
where he had worked had been fairly remote, yet its inhabitants had been in 
communication with the outside world, and the physician had come immediately in 
response to their call for help. 
The little aircraft had been circling overhead, directly above the place where he lay 
hidden. For a while, Hradzka was afraid it had spotted him, and was debating the 
advisability of using his blaster on it. Then it banked, turned and went away. He watched 
it circle over the valley on the other side of the mountain, and got to his feet. 
 
4 
Almost at once, there was a new sound--a multiple throbbing, at a quick, snarling tempo 
that hinted at enormous power, growing louder each second. Hradzka stiffened and drew 
his blaster; as he did, five more aircraft swooped over the crest of the mountain and came 
rushing down toward him; not aimlessly, but as though they knew exactly where he was. 
As they approached, the leading edges of their wings sparkled with light, branches began 
flying from the trees about him, and there was a loud hammering noise.
He aimed a little in front of them and began blasting. A wing flew from one of the 
aircraft, and it plunged downward. Another came apart in the air; a third burst into flames. 
The other two zoomed upward quickly. Hradzka swung his blaster after them, blasting 
again and again. He hit a fourth with a blast of energy, knocking it to pieces, and then the 
fifth was out of range. He blasted at it twice, but without effect; a hand-blaster was only 
good for a thousand yards at the most. 
Holstering his weapon, he hurried away, following the stream and keeping under cover of 
trees. The last of the attacking aircraft had gone away, but the little scout-plane was still 
circling about, well out of blaster-range. 
Once or twice, Hradzka was compelled to stay hidden for some time, not knowing the 
nature of the pilot's ability to detect him. It was during one of these waits that the next 
phase of the attack developed. 
It began, like the last one, with a distant roar that swelled in volume until it seemed to fill 
the whole world. Then, fifteen or twenty thousand feet out of blaster-range, the new 
attackers swept into sight. 
There must have been fifty of them, huge tapering things with wide-spread wings, flying 
in close formation, wave after V-shaped wave. He stood and stared at them, amazed; he 
had never imagined that such aircraft existed in the First Century. Then a high-pitched 
screaming sound cut through the roar of the propellers, and for an instant he saw 
countless small specks in the sky, falling downward. 
The first bomb-salvo landed in the young pines, where he had fought against the first air 
attack. Great gouts of flame shot upward, and smoke, and flying earth and debris. 
Hradzka turned and started to run. Another salvo fell in front of him; he veered to the left 
and plunged on through the undergrowth. Now the bombs were falling all about him, 
deafening him with their thunder, shaking him with concussion. He dodged, frightened, 
as the trunk of a tree came crashing down beside him. Then something hit him across the 
back, knocking him flat. For a moment, he lay stunned, then tried to rise. As he did, a 
searing light filled his eyes and a wave of intolerable heat swept over him. Then 
darkness... 
* * * * * 
"No, Zarvas Pol," Kradzy Zago repeated. "Hradzka will not return; the 'time-machine' 
was sabotaged." 
"So? By you?" the soldier asked. 
The scientist nodded. "I knew the purpose for which he intended it. Hradzka was not 
content with having enslaved a whole Solar System: he hungered to bring tyranny and 
serfdom to all the past and all the future as well; he wanted to be master not only of the 
present but of the centuries that were and were to be, as well. I never took part in politics, 
Zarvas Pol; I had no hand in this revolt. But I could not be party to such a crime as 
Hradzka contemplated when it lay within my power to prevent it."
"The machine will take him out of our    
    
		
	
	
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