Prove it. Find the L-B, retrace the trail of yesterday past the point of the fall which had started all this. Right there was the slope down which he must have tumbled. Above, he would find the den he had been exploring when the accident had occurred.

Only—he did not find it. His mind had produced a detailed picture of that rounded depression, at the bottom of which the strong-jaw lurked. But when he reached the crown of the bluff, nowhere did he sight the mounded earth of the pit's rim. He searched carefully for a good length, both north and south. No den—no trace of one. Yet his memory told him that there had been one here yesterday.

Had he fallen elsewhere and stumbled on, dazed, to fall a second time?

Some disputant inside him said no to that. This was where he had regained consciousness yesterday and there was no den!

He faced away from the river, breathing fast. No den—was there also no L-B? If he had passed this way dazed from a former fall, surely he would have left some trace.

There was a crushed, browned plant flattened by weight. He stooped to finger the wilted leaves. Something had come in this direction. He would back-track. Rynch gave a hunter's attention to the ground.

A half-hour later he found nothing but some odd, almost obliterated marks on grass too resilient to hold traces very long. And from them he could make nothing.

He knew where he was, even if he did not know how he got here. The L-B—if it did exist—was to the west. He had a vivid mental picture of the rocket shape, its once silvery sides dulled by exposure, canted crookedly amid trees. And he was going to find it!

Beyond the edge of any conscious sense there was a new stir. He was contacted again, tested. A forest called delicately in its alien way. Rynch had a fleeting thought of trees, was not aware of more than a mild desire to see what lay in their shade.

For the present his own problem held him. That which beckoned was defeated, repulsed by his indifference. While Rynch started at a steady distance to trot towards the east, far away a process akin to a relay clicked into a second set of impulse orders.