Agatha Christie publishes Cat Among the Pigeons

At the start of the Summer Term at Meadowbank School for Girls, there is no reason for Miss Bulstrode, the popular but aging Headmistress, to believe that the challenges facing her will be more than the occasional irate or inebriated parent.

She scarcely listens when Mrs Upjohn, a parent, recognises someone that she sees from her wartime days in the intelligence service. But there is a killer at the school who does not wait long to strike …