“Mercy was a thing reserved for gentler crimes. He maneuvered for the final rush… Then Buck sprang in and out; but while he was in, shoulder had at last squarely met shoulder… as Spitz disappeared from view.” (Chapter 3, Page 9) When Buck killed Spitz, this showed that he was no longer a civilized dog. He will do anything to protect himself, even if it means killing another dog. He is starting to act more like his wolf ancestors. This was probably the most major event to transform Buck, but one more thing happened before he became fully wild. The last thing to transform Buck into a primitive dog was the death of John Thornton. “John Thornton was dead. The last tie was broken. Man and the claims of man no longer bound him.” (Chapter 7, Page 7) John Thornton was the only thing keeping Buck from joining the wolves. When Thornton died, there was no reason for Buck to stay civilized. He was able to answer the call that compelled him to become wild. This was the last event to happen to Buck, and it transformed him into one with the wolves.
Buck has a significant transformation in Call of the Wild by Jack London, due to a few key reasons. The Law of Club and Fang was one of the reasons Buck was transformed. Another important event was when Buck killed Spitz, greatly changing him. The last thing to make Buck wild was the death of John Thornton. These were all the major reasons that Buck