Crosscut (Evan Delaney Series #4)

Evan Delaney knew China Lake was a tough place to grow up. But she never knew how tough until now-she returns to the desert military base for her high school reunion, and learns that a number of her classmates have died young. Then, on the first night of the reunion, another one dies-this one savagely butchered. And she's just the first. Someone has an axe to grind-and Evan's graduating class has something to fear.