The novels were A Murder is Announced of 1950 and They do it with Mirrors of 1952, and the play Spider’s Web of 1954.
Christie’s notes on ‘whodunnits’
Containing over 150pp of notes and fragmentary drafts for two of her novels and a play, an autograph notebook used by Agatha Christie while in Baghdad around 1948 – perhaps while travelling with her husband, the archaeologist Max Mallowan – sold for $15,000 (£11,625) in a Swann Auction Galleries (25/20/12% buyer’s premium) sale of May 4.