The Very Young Man's right arm hung limp behind him; the boulder in his hand dangled a hundred feet or more in the air above the water. Slowly the greater strength of his antagonist bent him backwards. Aura's heart stood still as she saw Targo's fingers at the Very Young Man's throat. Then, in a great arc, the Very Young Man swept the hand holding the rock over his head, and brought it down full upon his enemy's skull. The boulder fell into the river with a thundering splash. For a brief instant the giant figures hung swaying; then the titanic hulk of Targo's body came crashing down. It fell full across the river, quivered convulsively and lay still. And the river, backing up before it a moment, turned aside in its course, and flung the muddy torrent of its water roaring down through the forest. CHAPTER XXXVIII LOST IN SIZE The Very Young Man stood ankle deep in the turgid little rivulet, a tightness clutching at his chest, and with his head whirling. At his feet his antagonist lay motionless. He stepped out of the water, putting his foot into a tiny grove of trees that bent and crackled like twigs under his tread. He wondered if he would faint; he knew he must not. Away to the left he saw a line of tiny hills; beyond that a luminous obscurity into which his sight could not penetrate; behind him there was only darkness. He seemed to be standing in the midst of a great barren waste, with just a little toy river and forest at his feet--a child's plaything, set down in a man's great desert. The Very Young Man suddenly thought of his friends. He stepped into the middle of the river and out again on the other side. Then he bent down with his face close to the ground, just above the tops of the tiny little trees. He made the human figures out finally. Hardly larger than ants they seemed, and he shuddered as he saw them. The end of his thumb could have smashed them all, they were so small. One of the figures seemed to be waving something, and the Very Young Man thought he heard the squeak of its voice. He straightened upright, standing rigid, afraid to move his feet. He wondered what he should do, and in sudden fear felt for the vial of the diminishing drug. It was still in place, in the pouch under his armpit. The Very Young Man breathed a sigh of relief. He decided to take the drug and rejoin his friends. Then as a sudden thought struck him he bent down to the ground again, slowly, with infinite caution. The little figures were still there; and now he thought they were not quite as tiny as before. He watched them; slowly but unmistakably they were growing larger.