A Happy Halloween and a Blessed Samhain to you all!
If you're looking for a good Halloween read, hunt down Evan Dorkin and Jill Thompson's Beasts of Burden. Helluva good series about neighborhood pets who fight the supernatural. Way less twee than you would ever suspect and damned creepy in parts. A damn fine read. Failing that, check out these pugs in superhero costumes! (I am easily amused)
If you want something to just give you the flat-out creepy-crawlies, I suggest hunting down the manga Uzumaki. It's the creepy tale of a town haunted by a spiral that makes people into freaks and lunatics via anything remotely "spiral" shaped. Some portions are just laughable (Deadly curly hair!) but the bit about the human snail . . . brrrr.
Lastly, enjoy this creepy Bonus Video Content! If you haven't played Batman: Arkham Asylum yet, btw, it's a terrific game . . . and the Scarecrow is one of the best parts. :D Enjoy these easter eggs - little taped interviews from the so-called Master of Fear in Arkham Asylum.