Colson did very well today in tracing how Buck's chasing and killing larger and larger prey , each kill a step higher up on the food chain, foreshadows the ending of the novel wherein Buck kills the men who murder his beloved master, John Thornton. We noted that since the novel's thematic elements move Buck from domestic dog to mythic wolf-dog, inevitably Buck can not and does not die at the novel's conclusion. Colson further drafted two sentences in response to comprehension questions. We worked on the need for tense consistency in his responses and revised his work accordingly.