It's been a while since I've found a book so distracting that I'm thinking about it all the time and read it every spare minute. The Word is Murder by Antony Horowitz.
Really surprised actually because although I appreciated Magpie Murders i didn't immediately look for more of his books. I only picked this one off Libby as I was waiting for a hold to become free (a Brother Athelstan).
Will I be disappointed with the next Horowitz in this series? Which mysteries gripped you?