Who lived in the cities? Who might tame and use rats? He knew the answer to that. But why? The rat alone was not a formidable fighter-not an ally as good as Lura- they were only to be feared in hordes. Hordes-!
The rat jumped to the top of a boulder and began to lick itself dry, as if it had successfully completed a set task and could now take time for its own concerns. Fors had not been mistaken by some trick of the light-as the beast’s head twisted and turned the collar was easy to see. It was made of flat links and seemed flexible.
Suddenly the creature stopped its toilet and crouched very still, its beady eyes aimed downstream. Fors could not move. He had to see what was going to happen. And the same idea flashed to his mind from Lura who was flattened out against the rock some feet away, her lips frozen in a snarl.
They heard the splashing first, a sound too regular to be natural. If he were wise he would leave now, but he could not.
An ungainly figure came skittering through the shallows around the waterworn rocks. Its shape was queer but Fors peered until he made out that the hunched back of the creature was in reality a basket cage. At its coming the collared rat showed its teeth wickedly but it did not attempt to escape.
The Beast Thing came on, leisurely reached out a long arm and picked up the rat by its collar while it snapped its teeth and clawed wildly. With the ease of long practice the rat master threw his captive through a trap door into the cage and snapped it shut again. From the wild chattering which ensued Fors deduced that more than one rat rode therein. But Lura was gliding away from her vantage point and he knew that she was right. It was time for them to go.
But as he fled he continued to wonder. Why the rats? Unless the Beast Things had rested and sent the rats to trail him during the night. If that was true his taking to the trees must have baffled them for a good while. Or did rats climb? He wished that he knew more about their habits. And why had none of the Star Men discovered during their brushes with the Beast Things this use of rats? Was it new-another manifestation of the urge which was bringing the sub-human forces out of their century old burrows to challenge the descendants of the Old Ones?
All the old tales about the Beast Things went through his head as he mechanically set a trail which would delay but not altogether throw off the pursuers. They were supposed to be the offspring of city dwellers caught in the full strength of the radiation waves, children so much mutant in form and mind that they were no longer human at all. That was one explanation.
But there was another story about them too. And that was that the Beast Things were the descendants of companies of the invading enemy, parties of soldiers both male and female who had been landed to occupy the country and then been forgotten when their own nation had disappeared under retaliatory atom bombing. Soldiers, bewildered and totally lost when no orders came, who clung stubbornly to the positions they had been sent to occupy-remaining there in spite of the radiation.
Whichever theory was the true one, the Beast Things, though they aroused revulsion and instinctive hatred among the humans, were also victims of the Old Ones’ tragic mistake, as shattered in their lives as the cities had been.