The Michigan Daily newspaper has a good article (or an amusing one): favorite last lines of novels. For example, The Sun Also Rises has last line: “‘Oh, Jack,’ Brett said, ‘we could have had such a damned good time together.'”
I haven’t read James Joyce’s Dubliners, which is short stories rather than a novel. “The Dead,” which is the final line of the last short story: “His soul swooned slowly as he heard the snow falling faintly through the universe and faintly falling, like the descent of their last end, upon all the living and the dead.”
And Mary Shelley’s Frankenstein: “He was soon borne away by the waves and lost in darkness and distance.”
Correction: The best part of the last line in The Sun Also Rises is Jake’s reply to Lady Brett: “Isn’t it pretty to think so?”