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 see...