John Constantine: Hellblazer, 11. Sangre azul (Biblioteca Vertigo)

With "Royal Blood," a dark satire on the British aristocracy, Sir Peter Marston reveals to John Constantine that a young member of the royal family has been possessed by a demon after a ritual held at the Caligula Club, an elite circle where corruption and sadism are commonplace. John agrees to investigate, even though he knows he is entering a viper's nest with real political power.