Andrew Wilson’s first novel featuring Agatha Christie, A Talent for Murder (2017), met with positive reviews but seemed rather more Highsmithian than detection in concept (perhaps unsurprising, as Wilson has written a biography of Patricia Highsmith) and so I passed it over. And then John Norris — patron saint of the obscure, the forgotten, and the damned-near impossible-to-find — posted this rave review of the follow-up, A Different Kind of Evil (2018), and definitely caught my interest.