1951, 5 pages
A Dress of White Silk is a masterful lurking tale in which the author uses the most extreme form of oblique exposition I have encountered. The story is horror through and through told retrospectively by a person who is perhaps mentally handicapped, possessed, haunted, insane, a child, or all of the above. Richard Matheson uses the conventions of narrative prose against itself by deleting all quotation marks and apostrophes and neglecting to capitalize names.
The result is chilling and the last line accomplishes what many a page has not.