It's always weird when two worlds collide - I listen to Caroline's podcast "Shedunnit", a lovely warm hug of a show about the golden age of detective fiction, so I was a bit surprised to see her on HN. I highly recommend the podcast - it's not a subject I have a great deal of interest in, I just love listening to people talk about a niche that they're deeply interested in, and Caroline's love for the subject matter is contagious.