3) Coraline by Neil Gaiman

Why this book?
Did you ever wonder what Alice in Wonderland would have been like if it was written by Edgar Allan Poe? No? Well, in case you’re curious… that’s basically Coraline. The theme is a classic one: Be careful what you wish for. After all, unlike most fairy tales, this story’s door to another world comes with a harrowing price. (And a pretty high creep factor!)
Scary Quote
“How do I know you’ll keep your word?” asked Coraline.
“I swear it,” said the other mother. “I swear it on my own mother’s grave.”
“Does she have a grave?” asked Coraline.
“Oh yes,” said the other mother. “I put her in there myself. And when I found her trying to crawl out, I put her back.”
Sources:
Book cover and quote from Goodreads.com. Coraline written by Neil Gaiman.