John Thornton is paying off his depths to a woman who is a shop owner. "When Buck earned sixteen hundred dollars in five minutes for John Thornton, he made it possible for his master to pay off certain debts."
Buck heard a voice while he was at the camp and go up and went to the area where he heard the voice and found a wolf that was 1/3 of his size. "He sprang through the sleeping camp and in swift silence dashed through the woods. As he drew closer to the cry he went more slowly, with caution in every moment, till he came to an open place among the trees, and looking out, saw erect on haunches, with nose pointed to the sky, a long timber wolf
Buck has heard the voice of the wolf again so now he has went to the wolf and the wolf started to walk him somewhere far in the woods. But then he remembered about his owner for a couple days. "When suddenly his head would lift and his ears would cock up, intent and listening, and he would spring to his feet and dash away, and on and on, for hours."
Buck has just started to hunt his own food and so far he has killed a fish, moose, and a bear. "He was in a savage temper, and, standing over six foot from the ground, was as formidable an antagonist as even Buck could desire. Back and forth the bull tossed his great palmated."
Buck has just returned to the camp and has found his owner dead by the Yehhats so Buck starts to attack them and tries to kill them but he can't. " And truly Buck was the Fiend incarnate, raging at their heels and dragging them down like deer as they raced through the trees. It was a fateful day for the Yeehats."
Buck has just left the camp and joined a group of dogs as if they were a wolf pack. " He may be seen at the head of the pack, through the pale moonlight or glimmering borealis, leaping gigantic above his fellows, his great throat a-bellow as he sings a song of the younger world, which is the song of the pack."