If you’ve used the author’s name in the sentence:
In Kafka’s story ‘The Trial’, the protagonist K. attempts to assert his innocence by saying, “But I’m not guilty. There’s been a mistake. How is it even possible for someone to be guilty? We’re all human beings here, one like the other” (53).
If you haven’t used the author’s name in the sentence:
In the short story “The Fall of the House of Usher”, the narrator states, “I know not how it was—but, with the first glimpse of the building, a sense of insufferable gloom pervaded my spirit” (Poe 8).