Låt den rätte komma in (Let the Right One In) by John Ajvide Lindqvist
Possibly the best book I have ever read (as well as one of the best movies I have ever watched -- and yes, I'm putting this above Twilight, sorry guys.)
A beautiful love story, showing the struggles of a forgotten and bullied child, a vampire trapped in a twelve year old body. A fragile, anxious boy, 12-year-old Oskar is regularly bullied by his stronger classmates but never strikes back. The lonely boy's wish for a friend seems to come true when he meets Eli, also 12, who moves in next door to him with a man. A pale, serious young girl, she only comes out at night and doesn't seem affected by the freezing temperatures. Coinciding with Eli's arrival is a series of inexplicable disappearances and murders...it doesn't take long before he figures out that Eli is a vampire. But by now a subtle romance has blossomed between Oskar and Eli, and she gives him the strength to fight back against his aggressors. Oskar becomes increasingly aware of the tragic, inhuman dimension of Eli's plight, but cannot bring himself to forsake her. I recommend this book/movie to all those that wish it, please note that this follows the traditional vampire novels (Dracula --which really isn't fair because Dracula was hardly seen in the book--, Carmilla, etc, by being a horror love story. Please be aware of this when you read/watch this.)
The romance is very Twilight, but it is not the Revisionist vampires of Twilight, very Classical vampires (which of course means some graphic violence. Just warning for everyone.) Also, please note that it is in Swedish (does come with subtitles and there are translated books available.)
"You see a wile, you thwart. Am I right?"
-- Crowley to Aziraphale : Good Omens