Book excerpt: John Constantine is, and has always been, a magician of the highest caliber-who doesn’t need additional training from any highbrow magician, thank you very much. But a magical apprenticeship in the United States is a good excuse to get out of London…and in Washington, D.C., he can join his best friend’s punk band, Mucous Membrane. When the band begins to dabble in magic, a complicated spell gets out of hand…and the disastrous consequences might be more than Constantine can handle. Join #1 New York Times bestselling author Kami Garcia (Teen Titans: Raven, Beautiful Creatures) and artist Isaac Goodhart (Victor and Nora: A Gotham Love Story) in the most thrilling magical team-up of the year!