Although I’m trying to remember if I’ve read Agatha Christie’s Death on the Nile. I should have: when I was in my teens and twenties, I devoured all the Hercule Poirot stories I could find. Doyle, Christie, Sayers, Queen, Garrett, Westlake… I was what is in retrospect a somewhat enthusiastic fan of whodunits. ‘Course, I read a lot.