This is the first adult book by Anthony Horowitz that I have read, after enjoying his young adult series as a teenager (specifically, the Alex Rider and Power of Five series).

As a fan of murder mysteries, this is the first one I've also ever actually read (as opposed to TV and video games), and it does the genre justice. It constantly keeps you wondering what's next, and trying to figure out things yourself. All the characters are relatable and enjoyable to learn about, and the lead character (Susan Ryeland) is a breath of fresh air in the genre.

The book's main premise is that it's about a book within the book, and the way it uses this is very clever, and trying to explain it would not be doing it justice - definitely give this book a read.