The following is just a touch-up of some brief notes I made a couple of weeks ago after reading the Arthur Machen short story "The White People" (in case you don't pick up on it from what I wrote - I really, really liked it) (and yes, I'll stop going on about Ulysses (for a while) after this).
Alice's Adventures In Wonderland meets Ulysses in Hell. Probably the most brilliant piece of horror fiction I've ever read - the only thing I can think of that comes close in Poe's "Cask of Amontillado", and this might be even more ingenious than that. I mean, come on - this anticipates the writing style of James Joyce by 15 years (it was written in 1899) and Lovecraft's by nearly a quarter-century. Why isn't this guy better known today? To be placed in the sui generis file alongside Clark Ashton Smith, I guess (i.e., too fuckin' weird for almost anyone to understand, not to mention appreciate).
PS It appears that Alan Moore is a Machen fan, too - check out this and this.
Addendum: I did a little editing of (and added some hyperlinks to) the second paragraph, just for fun.