I used to do the same picking up any horror books that were cheap and looked suitably interesting or nasty.
Used to have a lot of movie tie ins and collections like the Pan book of Horror etc, along with any Stephen King and James Herbert i could get my hands on.
THe modern covers for Stephen king books are terrible.
Wish i'd kept hold of all that stuff now.
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MIKE: I've got it! Peter Cushing! We've got to drive a stake through his heart!
VYVYAN: Great! I'll get the car!
NEIL: I'll get a cushion.