The subject pronoun in the sentence is "they."
It's used to guide and organize the entire outline. (should be the main focus of the paper.)
A body paragraph. The topic sentence is the first sentence of a body paragraph telling what the paragraph is about
Kurtz is a central fictional character in Joseph Conrad's novella Heart of Darkness. A trader of ivory in Africa and commander of a trading post, he monopolises his position as a demigod among native Africans. Kurtzmeets with the novella's protagonist, Charles Marlow, who returns him to the coast via steamboat