Edgar Allan Poe 
The Sphinx 

The Sphinx is a short story written by Edgar Allan Poe about a man who decides to visit a relative living near the Hudson River north of New York City for two weeks during a cholera epidemic that occurred during the summer of 1832. One day during this visit, the man is reading a book near the window revealing a scenic view of the Hudson River. His attention is focused upon the cholera epidemic nevertheless, and when he glances up from th pages of his novel, the man sees a ghastly sight in the distant hills–there an enormous creature larger than any oceangoing ship is climbing down!