The Only One Left is Riley Sager’s best thriller yet. Set in a creepy gothic mansion with a cast of interesting characters (ahem, suspects), this book was such fun to read. I’ve read almost all of Riley Sager’s books and this was by far my favorite. It was suspenseful and had the best ending I’ve read in a long time and I read a lot of thrillers. Riley Sager has hit this one out of the park. I’d highly recommend.