Author reading guide · 8 min read
Best Anthony Horowitz Books: Seven Adult Mysteries Ranked
By BestPickZone Editorial Team · Published · Sources checked
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The best Anthony Horowitz book for an adult mystery reader is Magpie Murders. It makes the act of reading a detective novel part of a second investigation, giving the book-within-a-book idea a clear purpose. If you prefer to follow one modern investigative partnership, start with The Word Is Murder. If Sherlock Holmes is the attraction, choose The House of Silk.
This guide ranks seven adult mysteries. It does not attempt to compare every part of Horowitz's wider catalog, which also includes Alex Rider, James Bond and other fiction. Keeping that scope clear matters: a recommendation for a young spy-fiction reader would need a different shortlist.
The ranking is also separate from series order. Moonflower Murders may be a particularly good match for your taste, but Magpie Murders remains the sensible first Susan Ryeland book. The current Hawthorne path below includes the 2026 release A Deadly Episode.
One-glance reading path
- Start with Magpie Murders for linked mysteries and a novel inside the novel.
- Choose The Word Is Murder for the beginning of the Hawthorne and Horowitz partnership.
- Continue to Moonflower Murders when you want more Susan Ryeland and literary clues.
- Choose The House of Silk if the Sherlock Holmes setting is your main draw.
- Follow each series in publication order rather than using this ranking as a reading sequence.
1. Magpie Murders
Best overall for adult mystery readers
Editor Susan Ryeland receives a manuscript by crime writer Alan Conway, whose fictional detective Atticus Pünd investigates murders in 1950s English villages. The manuscript contains connections to another story beyond its fictional crime. Horowitz's official synopsis establishes both layers.
This earns the first recommendation because its central device gives the reader two related jobs. You can investigate the embedded mystery while asking why this particular writer created this particular version of events. Details gain a second possible function instead of serving only as clues in one case.
It is a strong match for readers who like the mechanics of crime fiction and enjoy noticing how a story is constructed. The tradeoff is structural patience. You must be willing to invest in one fictional world and then adjust your attention to another. If that sounds like interruption rather than added pleasure, choose The Word Is Murder.
Best for: Readers who enjoy close reading, village mysteries and stories about books.
Skip this if: You want one continuous investigation with a single setting and no substantial embedded narrative.
2. The Word Is Murder
Best introduction to Hawthorne and Horowitz
Former police detective Daniel Hawthorne wants Anthony Horowitz to write a book about a case he is investigating. The author becomes his reluctant companion. The official book page describes that arrangement; the Anthony on the page is part of the novel's fictional construction.
This is the better first choice if you want an ongoing detective partnership rather than a manuscript puzzle. Its extra source of interest is the mismatch between creating fictional investigations and participating in one. An author can arrange evidence on a page; a companion in a case must work with what another person chooses to reveal.
The device also provides a clear reason to continue the series if you like it. You are following both the cases and an awkward working relationship. The risk is equally specific: readers who find an author appearing in his own fiction distracting may prefer Susan Ryeland's series or The House of Silk.
Best for: Readers who like a detective-and-companion structure with a self-aware narrator.
Skip this if: You dislike fictionalized authors or need a reassuringly agreeable lead detective.
3. Moonflower Murders
Best follow-up for readers who loved the nested mystery
Susan Ryeland is drawn into a hotel-related mystery when a woman disappears after reading an Atticus Pünd novel Susan edited. The earlier book may contain information relevant to the real-world case. That connection is the starting point in Horowitz's synopsis.
The particular attraction is interpretive: what did another reader notice in a book, and why did it matter? Instead of merely looking for a concealed object or an unreliable alibi, you are asked to consider the consequences of someone reading a text differently.
We rank it below Magpie Murders as a general recommendation because the first book introduces Susan and the layered format. For someone who already enjoyed that arrangement, this becomes the obvious next choice. Do not expect it to solve a dislike of nested storytelling; the relationship between a fictional mystery and Susan's investigation remains the reason to be here.
Best for: Readers who want another substantial literary puzzle after Magpie Murders.
Skip this first if: You have not tried Susan's opening case, or moving between stories made the earlier book hard to enjoy.
4. The House of Silk
Best for Sherlock Holmes readers
In Victorian London, art dealer Edmund Carstairs seeks help from Sherlock Holmes and Dr. Watson after being threatened by a man apparently connected to America. Further crimes follow. The premise appears on Horowitz's official title page.
This is the simplest selection when the desired experience is time with Holmes and Watson. You do not need to decide whether you want Susan Ryeland's publishing world or an author-narrator's modern working life; the familiar investigative partnership supplies the point of entry.
That familiarity does not make it an automatically gentle recommendation. The official description explicitly emphasizes the disturbing nature of the case. Choose it for a Holmes-centered mystery with a dark premise, rather than assuming the established characters guarantee cozy reading. If you mainly want to discover Horowitz's own recurring investigators, the first two books on this list are more direct introductions.
Best for: Readers already interested in Holmes, Watson and historical detective fiction.
Skip this if: You want a comforting Victorian mystery or prefer original characters to an extension of an existing fictional world.
5. The Sentence Is Death
Best next Hawthorne book for a clue-heavy setup
Divorce lawyer Richard Pryce is murdered, leaving several conspicuous puzzles: an unexpected visitor, a number painted on a wall and an unusual choice of weapon. The author's description identifies this as the second Daniel Hawthorne novel.
The appeal is the invitation to distinguish a striking detail from a meaningful one. A conspicuous clue can command attention without explaining how the pieces connect. That makes this a good fit for readers who like carrying several provisional theories while a detective works through a case.
Its shortlist position reflects sequence more than the strength of the hook. Start with The Word Is Murder so that the arrangement between Hawthorne and his narrator is already established. Then choose this rather than jumping to a later volume purely because its title or setting catches your eye.
Best for: Readers who enjoyed the first Hawthorne book and want a fresh set of apparent contradictions to examine.
Skip this first if: You have not met the central partnership, or you want an entirely independent novel with no continuing character questions.
6. Marble Hall Murders
Best later Susan Ryeland choice
Susan is asked to edit a new Atticus Pünd continuation novel by Eliot Crace. He believes his grandmother, a famous children's author, was poisoned and says he has placed information about the killer inside his manuscript. The official synopsis establishes that premise.
This is especially appealing if the earlier Susan books made you interested in the boundary between a writer's invention and an accusation. A manuscript can invite interpretation, but interpreting it is not the same as proving its author's belief. That distinction gives readers a concrete reason to scrutinize the literary framing.
Our recommendation is to save it until after Magpie Murders and Moonflower Murders. The continuing character and repeated embedded-novel structure are advantages when they are what you want more of; they are extra context for someone arriving cold. Its place here is therefore about choosing a starting point, not a claim that later installments have less value.
Best for: Readers already invested in Susan and the mysteries concealed inside fictional manuscripts.
Skip this first if: You want to enter the series with the least background or are tired of the novel-within-a-novel device.
7. The Twist of a Knife
Best for established Hawthorne readers who want personal stakes
After a critic attacks the fictional Horowitz's new play, she is murdered and he becomes the prime suspect. Hawthorne is the person he needs to help him. That is the public setup for the fourth Hawthorne book.
The change in roles is the reason to pick this installment. A narrator who normally helps describe someone else's case must confront the consequences of being its subject. That can make the professional relationship more important than it would be in a case neither partner had a personal stake in.
It is also the strongest reason to avoid starting here. The premise refers to an existing arrangement between the pair, and its pressure makes more sense after seeing them work together. Read it when you want that relationship tested, rather than treating a particularly dramatic hook as a shortcut past the earlier books.
Best for: Continuing readers who enjoy theater settings and an investigator's companion becoming a suspect.
Skip this first if: You want a neutral introduction to Hawthorne or have little interest in the author-as-character premise.
Reading order for the two main mystery series
The Susan Ryeland path covered here is Magpie Murders → Moonflower Murders → Marble Hall Murders. Follow that order for Susan's continuing circumstances and the cleanest introduction to the format. Atticus Pünd is the detective inside the embedded novels; the order of those fictional cases is not the order to use when buying Horowitz's books.
The author's Hawthorne and Horowitz catalog gives this sequence:
- The Word Is Murder
- The Sentence Is Death
- A Line to Kill
- The Twist of a Knife
- Close to Death
- A Deadly Episode
A Deadly Episode was published in 2026, extending the Hawthorne sequence to six books. Its official premise involves a fictional screen adaptation of The Word Is Murder. That fictional production should not be mistaken for news of a real adaptation.
The final choice
Choose Magpie Murders if you want the book's structure to be part of the puzzle. Choose The Word Is Murder if you want to follow a recurring modern partnership. Choose The House of Silk if Holmes is the reason you are browsing. Those three starting points do more useful work than a single list pretending every Horowitz reader wants the same thing.
These recommendations draw on verified author descriptions and series relationships, with particular attention to narrative structure and the background a new reader needs. For more routes into suspense, explore our Alex Michaelides guide, psychological-thriller picks and author directory.