Halloween often ranks as people's favorite holiday--after all, who can resist costumes and candy corns? Many of us love the holiday for much spookier reasons; we love those ghosts, goblins, and ghouls. Ghosts have haunted the pages of many a book, including those of some of the best works of world literature. We’ll list ten, beginning with the creepiest, ghouls in BOOOOks! See? You've already had your first scare and we haven't even started the ghostly countdown. Hold on tight--you're about to take a trip through a haunted house full of ghastly literary characters.