A murder is tough thing to solve, even without temperamental performers, supernatural occurrences, and the ghost of the victim giving commentary. But as Kat's only link to the living world, it's up to scientifically-minded Anna to figure out who killed her sister--before any more murders rock the small traveling community. Yet as she gets closer to finding a lead, even more unbelievable events obscure the truth: roustabouts start sprouting horns, performers grow forked tongues, and a demon visits Anna's sleep at night. Does Kat know more than she's letting on? And can Anna keep the circus--let alone herself--safe?