I'll third White Fever and add one more nomination to the mix:
The Blind Owl by Sadegh Hidayat. It's dark which could fit the Halloween mood coming up quickly, and it's sparse at around 150 pages.
From Amazon:
The story is narrated by a young man, a painter of miniatures, whose name is never given. He feels an overbearing need to recount an experience he went through that has shattered his whole existence. A beautiful woman, an old man and a cypress tree are the recurring motifs...
Recognized as the outstanding Iranian writer of the twentieth century, Sadegh Hedayat is credited with having brought his country's language and literature into the mainstream of contemporary writing. The Blind Owl, long considered a classic and often compared to the works of Poe, chillingly recreates the labyrinthine movements of a deranged mind...
Links-
Amazon Canada
Amazon U.K.
Amazon U.S.
Bookworld Australia