The raven

Once upon a midnight dreary, while I pondered, weak and weary,
Over many a quaint and curious volume of forgotten lore –
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."

Edgar Alan Poe