"And how can we foretell their coming?" Dalgard wanted to know.

"Perhaps that alone we cannot do. But when they come they will not leave speedily. They have stayed here before without harm, and their distrust has been lulled. When next they come, it will be only according to their natures that they will wish to stay longer. Not snatching up the closest to hand of these treasures of theirs, but choosing out with care those things which will give them the best results. Therefore they may make a camp, and we can summon others to aid us."

"To return to Homeport will take several days even if we push," pointed out the scout.

"Word can pass swifter than man," the merman returned, with confidence in his own plan of action. "We shall put other eyes, other ears, many eyes, many ears, to service for us. Be assured we are not the only ones to fear the return of Those Others from overseas."

Dalgard caught his meaning. Yes, it would not be the first time the hoppers and other small animals living in the grasslands, the runners and even the moth birds that only the mermen could mind touch, would relay a message across the land. It might not be an accurate message—to transmit that by small animal brains was impossible—but the meaning would reach both merman and colony Elders: trouble in the north, help needed there. And since Dalgard was the only explorer at present who had chosen the northern trails, his people would know that he had sent that warning and would act upon it, as Sssuri's message would in turn be heeded by the warriors of his tribe.

Yes, it could be done. But what of the traces they had left here—the slaughtered snake-devils—?

Sssuri had an answer for that also. "Let them believe that one of my race came here, or that a party of us ventured to explore inland. We can make it appear that way. But they must not know of you. I do not believe that they ever learned of you or how your fathers came from the sky. And so that may swing the battle in our favor if it comes to open warfare."

What the merman said was sensible enough, and Dalgard was willing to obey orders. As he left the storehouse, Sssuri trailed him, scuffing each dusty print the scout left. Perhaps a master of trailcraft could unravel that spoor, but the colonist was ready to believe that no such master existed in the ranks of Those Others.

In the outer hall the merman approached the now dead snake-devil and jerked from its loose skin the arrow which had killed it. Loosing the head of his ruined spear from his belt, he dug and gouged at the small wound, tearing it so that its original nature was concealed forever. Then they retraced their way through the underground passages until they reached the sanded arena. Already insects buzzed hungrily about the hulks of the dead monsters.

There was a shrill squeal as the remaining infant reptile fled from the pouch where it had hidden. Sssuri hurled his knife, and the blade caught the small devil above the shoulder line, half cutting, half snapping its tender neck, so that it bounded aimlessly on to crash against the wall and fall back squirming feebly.