Threshold
Doors, gates and controlled entrances test who could enter, leave or be seen. A locked or restricted boundary matters only when access is established.
Cross-file audit · places and craft
Craft and location audit
A compact way to see which real places support each fictional setting, how architecture can carry evidence, and which writing patterns are observation rather than claimed authorial intent.
Reviewed 17 September 2026 · Sources & corrections
Composite register
One fictional place, several production geographies
Unknown interiors stay unknown.
Screen placeVerified or reported real placeBoundary
Cambridge police stationExterior associated with 2 The Square, Stockley Park.Interior not assigned
Theatre Royal CambridgeTheatre Royal Windsor stands in for the fictional Cambridge venue in S2 E1.Venue match
Wedding venueNorth Mymms Park is associated with the S2 E2 wedding and ceilidh setting.Venue match
Bryce ManorMoor Park Mansion stands in for the Series 1 manor.Venue match
SchoolSt James Senior Boys’ School is associated with S1 E5.No visitor access assumed
Story CambridgeQueens’ Lane, Queens’ College, Silver Street and St John’s supply recognisable exteriors; continuity between shots is not assumed.Multiple places
Architectural clues
How space becomes evidence
Method categories, not claims that every occurrence was deliberate.
Sightline
Windows, bridges, corners and camera positions limit what a witness or recording can actually show.
Route
Street width, crossings, corridors and river paths turn an apparent sequence into a testable movement problem.
Reasoning surface
Boards, tables, grids and room layout externalise order and contradiction without making the set decoration itself proof.
Reading ruleArchitecture is a clue only when the case uses it.The location register records a feature; the episode guide must still show that the feature changes what is possible.
Twelve-case itinerary
Episode-by-episode location status
Every episode has an entry, including explicit gaps.
Queens’ Lane is reported; the recurring station exterior is associated with Stockley Park.
Mixed Cambridge / stand-in geographyMoor Park Mansion is the reported Bryce Manor stand-in.
Real venue identifiedQueens’ College, Mathematical Bridge, Silver Street and Mill Pond form the verified route cluster.
Central Cambridge clusterNo precise public location record is accepted yet.
Open research itemSt James Senior Boys’ School is the reported venue; it remains a working school.
No visitor access assumedRecurring Cambridge and police geography is retained; a complete scene itinerary is not claimed.
Episode allocationTheatre Royal Windsor supplies the fictional Cambridge theatre.
Venue identifiedNorth Mymms Park is associated with the wedding and ceilidh setting.
Venue identifiedNo precise public venue record is accepted yet.
Open research itemNo precise public venue record is accepted yet.
Open research itemNo scene-level itinerary is published before independent broadcast verification.
Spoiler and verification boundaryLive visitor file
Seasonal opening information
Checked 17 September 2026; recheck on the day.
College access
St John’s states that grounds can close at short notice for events or operations and publishes current notices. The Casebook links to the official notice rather than freezing a seasonal timetable.
Ticketed venues
Theatre Royal Windsor ties entry to current performances and booking arrangements. Check the event page, access scheme and arrival guidance for the date of travel.
City-wide check
Visit Cambridge advises checking opening hours and admission requirements for each site. The Guildhall visitor point can provide current local guidance.
- Check the official venue page on the day.
- Confirm ticket, resident or university-card conditions.
- Check step-free access directly with the venue.
- Treat closures, worship, teaching and private events as overriding this fan route.
Writing analysis
Recurring case architecture
Mark Brotherhood is the credited creator and writer across the published series-level record.
Weekly case + long mystery
A self-contained investigation advances beside the continuing James story without requiring both strands to resolve together.
Premise becomes puzzle method
Identity, time, route, movement, testimony or geometry gives each case a dominant way to organise evidence.
Knowledge is uneven
John, Lucy, police colleagues and the audience often hold different parts of the same situation.
Physical record challenges narrative
Rooms, intervals, objects and viewpoints test a plausible story rather than merely decorate it.
Attribution boundaryThese are Casebook observations of the credited scripts.They are not quotations from the writer and do not claim intention without an attributable interview.