Shortlisted for the Guardian's Not The Booker Award 2015. A unique blend of science fantasy, hardboiled crime and epic verse. In the dark city of Vox, three hearts bring light. Prometheus, liquid light, is the drug of choice. Virgil Yorke investigates a murder when one of the hearts is stolen. Vox needs a hero; but Virgil has had a long cycle and doesn't feel like a hero.