The Moonstone

This was an interesting read, but not one that I can really say that I loved. Reading it, you can definitely see how influential it was on other detective stories of the era. I think the serialized nature of its publication hurt it a bit, though? There were lots of cliffhangery moments, especially in the second half, and they eventually became trying rather than intriuging. If you're already a committed fan of 19th century detective stories you'll want to make sure you've read it, but beyond that you'd probably want to give it a pass.