Only now, as he tried to return to shore, did he find he could not lift his feet. They were firmly embedded in the sand or muck, more than halfway to his knees. For a long moment he struggled to pull first one foot and then the other from the clinging stuff. Then he realized he must be in a sort of quicksand, and he began to panic. "Quick, Jak, come help me! I'm caught." But almost instantly he countermanded that sharply. "No! Stay back. The bottom here's quicksand or something." Jak had come running at Jon's first cry. At this warning, though, he slid to a halt just short of the water. "How can I help?" he cried anxiously. "Catch these first." And Jon threw first his rod, then his creel filled with fish. Jak caught each and tossed them farther back onto the bank. He then looked quickly about, and spied a long, fallen branch at some little distance. He called to his brother, who was still trying desperately to free himself, "Hang on a minute. I'll be right back." Racing for the branch, he picked it up and brought it back to the water's edge. But when he extended it toward Jon, it was too short by several feet, even though both leaned forward. Jak would have gone into the water with it, but Jon would not let him. "We'll have to try something else, then." Jak was getting really worried now, for he could see that the water was up to Jon's waist. "You'll have to make it snappy," Jon spoke as calmly as he could. "I'm sinking deeper all the time." Again Jak searched swiftly and purposefully about him. He saw something he thought might help and ran swiftly toward one of the smaller trees. With difficulty, because of the scarcity of limbs, he climbed this and soon was hacking, with his machete-like knife, at the long, slender liana or climbing vine that hung downward from it. It took only a few moments to sever the top end, then Jak slid down the trunk and traced the vine to its root, cutting it there. With this long section he ran back to the water's edge. "Catch," he yelled--but it took several attempts before he could get the unwieldy vine-end near enough for Jon to grasp. Jak dug his heels into the ground and started pulling. His face grew red, cords stood out in his neck, and his muscles bulged. But quickly the strain proved too great for him. Since he was the lighter and weaker he was being pulled toward the water, rather than freeing his embedded brother. "I ... can't ... do it," Jak panted, his strength gone, his muscles and limbs aching and trembling. "Tie your end around a tree. I'll try to work myself out." Jak did so, and the muscles on Jon's more powerful arms, back and shoulders stood out in ridges as he threw all his splendid young strength into this climactic effort. He pulled, he wriggled about from side to side.