Lock & Key #2: Head Games, by Joe Hill, 144 pages
Things are getting interesting at Key House, especially with Tyler's new friend "Zack." Tiny bits of the back story are revealed, as is a new key with a kind of awesome and kind of terrifying purpose. Fans of Stephen King might like this (and I don't say that because he's the author's father)- it's got the right amount of creepiness and horror mixed with a well-formed back-story. I am really enjoying this series, but there is some violence and gore for those sensitive to that.