Detective Daniel Hawthorne Books in Order

The Detective Daniel Hawthorne series is a modern mystery series with a playful setup: Anthony Horowitz appears as a character, hired to write books about a real-life private investigator. Hawthorne is blunt, secretive, and very good at his job. “Horowitz” is curious, out of his depth, and constantly annoyed that Hawthorne won’t tell him everything.

The first book, The Word Is Murder, sets the tone. A death that looks impossible pulls Hawthorne onto the case, and Horowitz gets dragged along to take notes. The partnership is half detective story, half argument about how detective stories are supposed to work, including whether the writer is allowed to know more than the reader.

It’s funny, but the crimes are real.

Each installment drops the pair into a new world. The Sentence Is Death spins a mystery that looks simple until it isn’t. A Line to Kill pushes the investigation into a setting full of ego and performance. The Twist of a Knife raises the personal stakes by turning the spotlight on Horowitz himself. Close to Death narrows in on a tight community where everyone has a reason to keep quiet. A Deadly Episode keeps the blend of clue-hunting and behind-the-scenes writing life, with Horowitz trying to keep up and stay out of the way.

What makes these books work is how Hawthorne investigates. He’s practical, a bit abrasive, and happiest when everyone stops talking and lets him read the room. Horowitz, meanwhile, narrates with a mixture of admiration and irritation, which keeps the tone light even when the subject is dark. London and the surrounding countryside show up as lived-in settings rather than tourist backdrops.

The ongoing thread is the relationship between the two leads. Hawthorne is the classic closed book, full of history you only see in glimpses. Horowitz is the audience surrogate, asking the questions you’d ask and getting impatient when Hawthorne dodges them. Over time you start to see why Hawthorne works the way he does, and why Horowitz can’t stop following him.

These books are also love letters to clue-based mysteries. Horowitz lays down details early and expects you to notice them. He’ll also stop and talk about the writing process, because the narrator is a writer, and because it’s fun to watch a real investigation collide with the tidy rules of fiction.

Start with The Word Is Murder and read in order. You can solve each case on its own, but the running jokes, the personal reveals, and the shifting power balance between Hawthorne and Horowitz are best enjoyed from the beginning.