13 to Life by Shannon Delany

Everything about Jessie Gillmansen's life changed when her mother died. Now even her hometown of Junction is changing. Mysterious dark things are happening. All Jessie wants is to avoid more change. But showing a hot new guy around Junction High, she's about to discover a whole new type of change. Pietr Rusakova is more than good looks and a fascinating accent—he's a guy with a dangerous secret. And his very existence is sure to bring big trouble to Jessie's small town. It seems change is the one thing Jessie can't avoid...