A VINTAGE MURDER MYSTERYAgatha Christie called her ‘a shining light’. Have you discovered Margery Allingham, the ''true queen'' of the classic murder mystery?A baker’s dozen of cases, each putting Albert Campion through his paces. In this miscellany of villainy, our unconventional sleuth must contend with misbehaving debutantes, sinister smuggling rings, a Dowager Countess who’s not all that she seems, an SOS message daubed in lipstick, a beleaguered New York socialite, and an elderly Egyptologist indulging in some bad behaviour…