The Black Cat

First time actually reading Poe (rather than listening to it), and I have finally realized what makes Poe so great - the prose. He manages to weave a simple story into something that is only subtly terrifying, through the exploration of the mind of a mad man it becomes even more so.

The way Poe distorts things with subtly, gives the impression of madness. The story would not work from a different perspective, the horror comes from the thoughts of the narrator rather than the events themselves.