The Secret Adversary by Agatha Christie  || Christie, Agatha, 1890-1976 || Private investigators -- England -- Fiction; Detective and mystery stories; Domestic fiction; Married people -- Fiction; Missing persons -- Fiction; Beresford, Tommy (Fictitious character) -- Fiction; Beresford, Tuppence (Fictitious character) -- Fiction || Detective Fiction; Browsing: Crime/Mystery; Browsing: Literature; Browsing: Fiction || Language : English