Thirty days later, the dogs and men arrive back at Skaguay. The dogs are replaced with a fresh team, and Buck and his mates are sold to two men
They load up the sled together with charles's wife Mercedes that is the sister of Hal.
It's my dog
If you strike that dog again, I'll kill you,"
the sled is too heavy to be pulled. Hal tries to whip the team, but the dogs still cannot pull the sled, even when Mercedes pleads with them to pull so that her brother will stop whipping them.In the travel many dogs die.
"You poor devil,"
the team reaches John Thornton’s camp, where Thornton, an experienced gold hunter, tells them that the ice is melting and that they cannot push on without risking falling through. Hal ignores him.
Hal start whipping Buck, however, refuses to get up Thornton leaps up, pushes Hal back, and stands over Buck, threatening to kill Hal if he strikes the dog again.Jonh Thornton take buck and search for broken bones
Suddenly, they saw its back end drop down, , . Mercedes's scream . They saw Charles turn and make one step to run back, and then a whole section of ice break and dogs and humans disappear..