“Dead girl walking,” the boys say in the halls. “Tell us your secret,” the girls whisper, one toilet to another. I am that girl. I am the space between my thighs, daylight shining through. I am the bones they want, wired on a porcelain frame.

Lia and Cassie are best friends, wintergirls frozen in matchstick bodies, competitors in a deadly contest to see who can be the skinniest. But what comes after size zero and size double-zero? When Cassie succumbs to the demons within, Lia feels she is being haunted by her friend’s restless spirit.