Elephants Can Remember

I grew up with several shelves' worth of Agatha Christie books in the built-in bookcase above the stairs, but I only ever read one short story or novella. I borrowed a few books from my parents the last time I visited, and the first sentence of this one introduced a novelist. What writer doesn't enjoy reading about novelists? So I started with this one.

The story was fine, interesting and engaging enough, but it lit none of the fires that Sayers usually does for me, or that Hammett and Highsmith recently did. I might go on to read By the Pricking of My Thumbs and The Mirror Crack'd from Side to Side because those are the only titles that have stuck with me since my youth, but I don't think I'll miss much if I leave the rest be.