The ending of Things Fall Apart was one of the most emotionally impactful endings in such a brief manner that I've ever read:
"Obierika, who had been gazing steadily at his friend’s dangling body, turned suddenly to the District Commissioner and said ferociously: “That man was one of the greatest men in Umuofia. You drove him to kill himself; and now he will be buried like a dog…” He could not say any more. His voice trembled and choked his words."
Even now as I search for the quote I'm amazed after two years I can still remember the exact wording -- 'he will be buried like a dog'. Rest in peace, this wonderful author.