YA Chills
This Is Not A Test by Courtney Summers - Yes, there are zombies, but the story doesn't focus on their slavering, flesh-eating ways and looks instead at the effects their presence has on Summers' cast of teenagers. A healthy dose of chills without blood-induced queasiness? Don't mind if I do. Seriously, though, this book is extremely addictive and easy to get caught up in for an evening.
Anna Dressed in Blood by Kendare Blake - This is the most gory of my recommendations this year so those of you that are not fond of excessive descriptions of blood and some deaths, be wary of this one, please. I don't want to be responsible for your nightmares! For someone who is generally not brave when it comes to horror, I find that there is something haunting and sad about ghost's stories (that's the stories of the ghosts, not a typo in 'ghost stories'). Featuring a ghost hunter-type boy, this has those in spades, which makes it a lot more emotive than your standard "Ghost Bad, Kill" story. Although there is a romantic sub-plot that I could live without. Just sayin'...
Ghost Stories with a Twist
The Canterville Ghost by Oscar Wilde - Fond of some slapstick humour with your ghosts? Or, as is more likely, now that you've read that there is something that combines humour and ghosts successfully, like the sound of it? Oscar Wilde is your man. I think this is the least horror-ish of my faux-horror recommendations and is genuinely funny. Grab some pumpkin-shaped chocolates and tuck in.
The Winter Ghosts by Kate Mosse - Like your ghost stories with a historical fiction edge? The Winter Ghosts mixes that haunting lost feeling that is often described in relation to survivors of the Great War with that regular haunting feeling. The writing is superb meaning you can enjoy your walk on the ghostly side with some class and elegance.
So there you have it! If you have a few hours to spare this Hallowe'en and feel like spending them hidden away with an appropriately-themed-but-not-terrifying book, you can do much, much worse than these. Happy Hallowe'en!! :)