Only, the thing which had no intelligence, as humankind rated intelligence, did possess the ability to fathom the nature of that artificial barrier. The force field was examined, its nature digested. First approach had failed. The second was now ready—ready as it had not been months before when the first coming of these creatures had alerted the very ancient watchdog on Jumala.

Deep in the darker woods on the mountain sides there was a stirring. Things whimpered in their sleep, protested subconsciously commands they could never understand, only obey. With the coming of dawn there would be a marshaling of hosts, a new assault—not on the camp, but on any leaving its protection. And also on the boy now sleeping in a shallow cave formed by the swept roots of a tree—a tree which had crashed when the L-B landed.

Again, fortune favored Hume. With the dawn the rain was over. There was a cloudy sky overhead, but he believed the day would clear. The roily, rushing water of the river would aid Chambriss' quest. Water-cats holed up in the banks, but rising water often forced them out of such dens. A course parallel to the stream bed could well show them the tracks of one of the felines.

They started off in a group, Hume leading, with Chambriss treading briskly behind him, Rovald bringing up the rear in the approved trail technique. Chambriss carried a needler, Starns was unarmed except for a small protection stunner, his tri-dee box slung on his chest by well-worn carrying straps. Yactisi shouldered an electric pole, wore its control belt buckled about his middle, though Hume had warned him that the storm would prevent any deep hole fishing.

Only a short distance from the campsite they came upon the unmistakable marks of a water-cat's broad paws, pressed in so heavy and distinct a pattern that Hume knew the animal could not be far ahead. The indentations were deep, and he measured the distance between them with the length of his hand.

"Big one!" Chambriss exclaimed in satisfaction. "Going away from the river, too."

That point puzzled Hume slightly. The red coated felines might be washed out of their burrows, but they did not willingly head so sharply away from the water. He squatted on his heels and surveyed the stretch of countryside between them and the distant wood with care.

The grass was this season's, still growing, not tall enough to afford cover for an animal with paws as large as these prints. There were two clumps of brush. It could have holed up in either, waiting to attack any trailer—but why? It had not been wounded, nor frightened by their party, there was no reason for it to set an ambush on its back trail.

Starns and Yactisi dropped back, though Starns was fussing with his tri-dee. Rovald caught up. He had drawn his ray tube in answer to Hume's hand wave. Any action foreign to the regular habits of an animal was to be mistrusted.

Getting to his feet Hume paced along the line of marks. They were fresh—hot fresh. And they still led in a straight line for the woods. With another wave of his hand he stopped Chambriss. The civ was trained in spite of his eagerness and obeyed. Hume left the tracks, made a detour which brought him to a point from which he could study those clumps of brush. No sign except that line of prints pointed to the woods. And if the party kept on, they might well come upon the L-B!