Oh, man, the world needs more scary stories that aren't all slasher-grossness, and this one delivers. It's a little overlong and occasionally info-dumpy, but the infodumps are well integrated into the story and the overlong parts build atmosphere, so I can live with both those things. It's creepy and scary and well-written, but the pacing may be a little slow for younger teens. I'd pitch this to high school and up.