Read a literary analysis written by Ahmad about part 3 of The Call of the Wild. With Buck secured as the leader, the team makes record time. They cross seventy miles of frozen lakes with impressive speed, arriving in Skaguay ahead of schedule. Francois and Perrault are heralded by other mushers in town, and when the celebration is over and new assignments given, “Francois called Buck to him, threw his arms around him, wept over him.” The men are sorry to part ways with Buck. How could the final sentence be revised to present a clear conclusion? The men have learned that the dogs they command are their superiors. The trail has forged an emotional connection between men and team. The success of the team inspires the men to keep the team together. The trail has been challenging, which is why the men cry at the end.

taking into account that a theme is the central topic a text treats and can be developed through a story, play, poem etc. the following are themes that can be further developed:  

my best friend jeffrey has many unusual interests. (the story could be about each of the unususal interests)

once a man gives his soul over to evil, he can never go back. (this could be a saying or a proverb)

the three sheepdogs lay around the yard all day. (it could be developed detailing how each of these sheepdogs lay around)

a priest's collar has an unusual effect upon people. (it could be developed detailing the different effect upon people)

innocence is a powerful force in a world full of corruption. (it could be developed detailing how is a world full of corruption)

king lear is a play shakespeare wrote later. (it is just a sentence and doesnt give any idea or topic to be discussed in details.

evil often wears the disguise of innocence. (this could be a saying or a proverb)

i think the answer is invented words, rhyming knack, alliteration, and, metaphor.