Audio books rec request

I'm looking for good audio books(on CD disc or in mp3 form, not itunes or audible.) in dark fiction, horror, or non-space opera sci-fi. The more obscure the better since I might not have read/listened to it. Have read most of stephen king and lovecraft, can't stand dean koontz, in other words yeah the less well known the better. Also no young adult please. Thanks :)