Complex sentence: Mellow (1992), 266--268 Nick features in the last story, "Big Two-Hearted River", which Hemingway purposely wrote as the concluding and climatic piece of "In Our Time".
Split into simpler sentences: Mellow (1992), 266--268 "Big Two-Hearted River" ends the collection. It was designed and written to be the concluding and climatic piece of "In Our Time".