As in the first two parts of this series, Suze (who can talk to--and punch--ghosts) gets embroiled in a mystery that involves the boy she's going out with. Why are four ghosts trying to kill Michael, the dorky boy she intends to protect? She finds out about halfway through, and eventually takes charge of the situation. It's a fun book, but the 10% of it is rehashing the first two books, and the entire conceit is feeling overused. I felt like I'd read this book before.