What chapter does John Thornton saves Buck's life from Hal's cruelty in call of the wild?

In "The Call of the Wild," John Thornton saves Buck from Hal's cruelty in Chapter 2, titled "The Law of Club and Fang." Hal, along with Charles and Mercedes, mistreats Buck and the other sled dogs, pushing them to their limits. Thornton intervenes just in time, demonstrating his kindness and forming a deep bond with Buck. This moment marks a significant turning point in Buck's life, leading him to find loyalty and love with Thornton.