Read this excerpt from "The Raven."While I nodded, nearly napping, suddenly there came a tapping,As of some one gently rapping, rapping at my chamber door."'Tis some visitor," I muttered, "tapping at my chamber door— Only this and nothing more."

The speaker hears an unexplained tapping while nearly asleep and tries to guess who is at the door. The repeated sound and uncertainty about the visitor create a sense of mystery. The mood is not chaos or urgency, since the tapping is described as gentle.

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