ADAPTATIONS · SPOILER-LIGHT

Every screen, radio and graphic route through the reading room.

An adaptation changes format; it does not create another prose novel. This index keeps source work, production, continuity and availability separate so the shelves never double-count.

Complete screen index

ProductionSource / formatGuide
Just Ask for Diamond1988 filmThe Falcon’s Malteser
Stephen Bayly directs Horowitz’s screenplay; Colin Dale and Dursley McLinden play Nick and Tim.
Open the detailed file →
South by South East1991 six-part televisionScreen/book story developed together
Horowitz writes and directs; Dale and McLinden return.
Open the detailed file →
Stormbreaker2006 filmStormbreaker
Geoffrey Sax directs; Horowitz writes the screenplay; Alex Pettyfer plays Alex.
Open the detailed file →
Alex Rider2020–2024 television, three seasonsPoint Blanc · Eagle Strike · Nightshade spines
Otto Farrant leads the separate television continuity.
Open the detailed file →
Magpie Murders2022 six-part televisionMagpie Murders
Lesley Manville is Susan Ryeland; Tim McMullan is Atticus Pünd; Horowitz adapts his novel.
Open the detailed file →
Moonflower Murders2024 six-part televisionMoonflower Murders
Manville and McMullan return for the second nested mystery.
Open the detailed file →
Marble Hall Murders2026 six-part televisionMarble Hall Murders
Third Susan/Pünd production; PBS run 6 September–11 October 2026.
Open the detailed file →

Production companies and broadcasters

These credits describe original production and broadcast history; current streaming availability can differ by country.

ProductionProduction entryBroadcast / release entry
Just Ask for Diamond1988Red Rooster Film & TelevisionUK feature film; released in the United States as Diamond’s Edge.
South by South East1991Red Rooster Film & Television with TVS, IDTV and AVROSix-part ITV/CITV production, with AVRO participation in the Netherlands.
Alex Rider2020–2024Eleventh Hour Films and Sony Pictures TelevisionThree-series television production; UK launch on Amazon Prime Video, with later platform history varying by territory.
Magpie · Moonflower · Marble Hall2022–2026Eleventh Hour Films for MASTERPIECEPBS MASTERPIECE in the United States; UK broadcaster and availability differ by production and date.
Groosham Grange1992 RADIO DRAMABBC radio production; adapted by Stephen Sheridan, directed by Sally AvensFirst broadcast in 1992; later carried by BBC Radio 7 and released by BBC Studios as digital audio.

Stage-adaptation status

NO SOURCE-LINKED BOOK-TO-STAGE PRODUCTIONHorowitz’s official theatre catalogue lists original plays including A Handbag and Mindgame. Those works are theatre writing, not adaptations of his novels. No authoritative entry of a staged adaptation of an Anthony Horowitz book was located, so this index does not manufacture one.

Susan Ryeland on television

MAGPIE MURDERS · 2022The double world becomes visible

Six episodes move between Susan’s publishing-world investigation and the Atticus Pünd novel. Lesley Manville and Tim McMullan anchor the two levels; Anthony Horowitz adapts.

MOONFLOWER MURDERS · 2024The pattern travels

The second six-part production returns to Susan and Pünd, using the sequel’s hotel mystery and embedded book as its paired investigations.

MARBLE HALL MURDERS · 2026Editing becomes evidence again

Susan is hired to edit a continuation Pünd novel by a troubled young writer and becomes entangled in another murder. The source-linked PBS run is 6 September–11 October 2026.

FUTURE WATCHNo fourth production announced

The three published Susan Ryeland novels now each have a television production. No official fourth source novel or fourth adaptation announcement is treated as fact.

Streaming availability varies by territory and date.

Graphic-novel adaptation index

Alex Rider · seven volumes

Stormbreaker through Snakehead. Open the full contributor index →

Power of Five · three volumes

Raven’s Gate, Evil Star and Nightrise. Open the adaptation archive →

Edge: Horowitz Graphic Horror · four volumes

The Phone Goes Dead, Scared, Killer Camera and The Hitchhiker.

Counting rule

Fourteen graphic adaptations, all linked to source stories; none is counted as a new prose work.

Authorised radio and BBC audio

ProductionTypeSource-linked entry
Groosham GrangeBBC RADIO 7 · 1992Full-cast dramatisation adapted by Stephen Sheridan and directed by Sally Avens; Daniel Isen, Lucy Speed, Sheila Hancock and Clive Merrison among the cast.BBC Studios released the production as a digital audio download in 2026.
The House of SilkBBC RADIO 4 · 2011Book at Bedtime serial / abridged reading.Broadcast alongside the novel’s original publication; labelled as a reading rather than a full-cast drama.
Trigger MortisBBC RADIO 4 · 2015Book at Bedtime serial read by Rupert Penry-Jones.An authorised broadcast reading, not a separate Bond screenplay or screen continuity.
Bond trilogy and Fleming-canon comparison — reveal thematic spoilers

Why With a Mind to Kill concludes the trilogy

Forever and a Day gives Bond a beginning before Casino Royale; Trigger Mortis catches him in the established Fleming run after Goldfinger; With a Mind to Kill follows The Man with the Golden Gun and confronts the damage left by brainwashing, loyalty and a lifetime of state violence. Origin, prime and aftermath create a deliberate three-part arc.

Against Fleming, Horowitz preserves the period and institutional world while making the three insertions converse: the licence is acquired, exercised and finally interrogated. The last novel is conclusive because it occupies the far edge of Fleming chronology and turns Bond’s conditioned mind—the thing once used against him—into the trilogy’s ultimate battlefield.

Sources

Production status uses official broadcaster, production-company, publisher and rights-holder pages wherever available. Current status.