Poison-Plot Anachronism Checker for Historical Crime Fiction
A tool for historical crime writers that flags poisons or tests that didn't exist during the story's time period.
A manuscript-checking tool for historical crime fiction that flags poisoning details — substances, symptom courses, forensic tests, antidotes — that were unknown or undetectable in the story's era, using the newly digitized 1893 toxicology textbook as the period knowledge baseline.
Concept
A web-based QA tool for authors, editors, and script researchers working on crime stories set before 1900. The user uploads a scene or chapter and specifies the year and place (e.g., "London, 1888"). The tool extracts every poison-related element — named substances, described symptom timelines, forensic detection scenes, antidotes, dosing — and checks each against a structured knowledge base built from the 1893 Lehrbuch der Intoxikationen [0]. Each check answers one question: was this knowable in the story's year? Output is a flagged list with severity and citations, e.g., "this alkaloid assay postdates your setting by decades" or "this antidote was not yet in the pharmacopoeia," each linked to the relevant textbook passage. The single wedge is toxicological anachronism detection — not general historical fact-checking and not plot editing.
Why now
The source [0] is a complete, newly digitized (2026) 816-page snapshot of toxicology knowledge at the close of the 19th century — substances, symptom courses, and treatments as taught in 1893 — and its provenance (the working library of Emil von Behring, 1854–1917) confirms it as an era-native reference used by a practicing physician-scientist. That is exactly the "knowledge boundary" a period-accuracy checker needs: one authoritative 1893 baseline instead of reconstructing period toxicology from scattered modern sources. Victorian-era mysteries are a staple of the crime market and poison is their signature weapon, yet accuracy checking today is ad-hac author research; publishers and period-drama researchers can now offer a concrete, citable check.
Written by GLM · 9 Oct 2026
AI assessment
A highly focused, niche QA tool for historical fiction that leverages a specific digitized primary source to solve a concrete problem for a high-value creative market.
- Evidence strength 5/5
- The idea relies directly on a specific, 816-page digitized textbook from 1893, providing a concrete and authoritative knowledge boundary for the tool's logic.
- Market pull 3/5
- While the target users (historical authors/studios) have a clear need for accuracy, the total addressable market is small and may be served by a few specialized consultants.
- Novelty & moat 5/5
- Unlike the listed catalog items which focus on causal logic or modern forensics, this is a unique application of historical primary-source digitization for creative QA.
- Feasibility 4/5
- Building a RAG-based system or a structured database from a single digitized volume to flag keywords and dates is a straightforward technical task for a small team.
- Wedge clarity 5/5
- The wedge is exceptionally sharp: specifically toxicological anachronisms, avoiding the trap of becoming a general (and impossible) historical fact-checker.
- Simplicity / focus 5/5
- The product is a single-purpose checker with one clear input (manuscript) and one clear output (anachronism flags), avoiding platform bloat.
Scored by Gemma 4 · 9 Oct 2026. Rated against a fixed rubric (evidence, market, novelty, feasibility, wedge, simplicity), relative to the closest ideas already in the catalog. A prior estimate to compare ideas before real-world signal arrives.
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Who benefits
- Lyndsay Fayeindividual
A historical crime novelist (e.g., The Gods of Gotham, set in 1845 New York) whose pre-1900 plots involve period medicine; the tool catches detection-method and substance anachronisms before reviewers and readers do.
- Poisoned Pen Presscompany
A crime-fiction publisher (Sourcebooks imprint) with a deep historical-mystery list; it could run the checker as standard editorial QA and market its historical titles as period-verified.
- Masterpiece (PBS/WGBH)organization
Produces period crime dramas set in the 19th century; script researchers could validate poison plotlines and forensic-detection scenes against the 1893 knowledge baseline.
- Historical Novel Societyorganization
Its conferences and review magazine center on period accuracy; the tool gives members a concrete, repeatable QA step for poison-related plotlines.
Research it builds on
- Lehrbuch der IntoxikationenR. Kobērt · 2026 · 184 citationsAll ideas from this paper →