The Missing Heirloom
A sapphire necklace vanishes from a locked study.
Ashford Manor · Bath · 1924
Step through the gates of 1920s and ’30s Britain and beyond. Search rain-soaked manors room by room, question every suspect, and name the killer — in two hundred handcrafted murder mysteries.
iPhone & iPad · The first ten cases are free
The Game
Every case is a sealed puzzle box. The answer is always in the evidence — no guessing, no pixel-hunting, no luck. Just you, a notebook, and a house full of people with something to hide.
Inspector Hale lays out the crime: the victim, the scene, the hour it happened.
Examine every drawer and desk. Combine items, read letters, crack combination locks.
Interview the suspects. Confront them with evidence and watch their stories crack.
Pin clues to suspects on the cork board and put the night’s events in order.
Name the culprit, the motive and the method. Get it right first time for three stars.

Explore
Hand-built 2.5D rooms you can pan and pinch like a dollhouse. Tap the writing desk, the wardrobe, the cold teacup. Locked doors open as the case does, and secret passages hide behind the bookshelves.
The Map
Pull back to see the building you’re investigating, room by room. Unexplored doors wait in fog, locked ones wear a padlock, and one tap takes you anywhere you’ve already been.


Deduce
Your notebook keeps every clue, statement and suspect. Pin evidence to the board and draw the threads between them; arrange the timeline until the night makes sense. When an alibi doesn’t hold, you’ll see exactly where it breaks.
The Casebooks
Poisonings at dinner parties, thefts from locked studies, a juror who never left the jury room. From Bath to Budapest, Brighton to Luxor, Davos to the Nile, the cases grow darker and cleverer as you go.
A sapphire necklace vanishes from a locked study.
Ashford Manor · Bath · 1924
A toast, a sip, and a collector falls silent forever.
Vane House · London · 1926
Six cakes for the judge. Five for the parish. One for the pig.
St. Aidan’s Vicarage · Yorkshire Dales · 1928
Forty clocks keep perfect time. One of them is lying.
Thorne & Son · York · 1931
A chained door, an open window, and a man who simply isn’t there.
The Grand Meridian Hotel · Brighton · 1933
Eleven men and women wanted to go home. The twelfth wanted justice — and drank his tea.
The Old Bailey · London · 1937
A diplomat dies in a locked compartment deep inside the Simplon tunnel. Seven passengers swear they were asleep.
Simplon-Orient Express · Lausanne to Milan · 1930
An Egyptologist dies aboard a Nile houseboat. His last translation names a forger.
The Hathor · Luxor · 1935
A lecture weekend on the perfect crime. Someone in the audience is about to commit one.
A country house · Wiltshire · 1939
…halfway down the trail, The Blackwood Conspiracy. At the very end of it, The Nightjar’s Gambit. Wiltshire, 1939.
Sound & Atmosphere
Every case briefing is fully voiced. Rain on the windows, the tick of the hall clock, distant thunder and an original score set the scene — and every drawer, lock and door has its own sound.
Fair Play
Casebook I is free — ten full cases to learn the trade. After that, buy only the casebooks you want. No ads interrupt the atmosphere, and nothing you buy can earn a better rank: hints always lower your case score.
$2.99 each
Casebooks II to XX, bought one at a time. Yours to keep.
$24.99 once
All 190 paid cases in Casebooks II–XX, now and forever, for less than half the price of buying them singly.
$3.99 / month or $24.99 / year
Every casebook while you’re a member, unlimited hint reveals, a Cold Case of the Month and early access to new casebooks.
Prices shown in US dollars and may vary by region. Purchases are handled by Apple. Subscriptions renew automatically until cancelled in your Apple account settings.
Shadow & Clue is coming to iPhone and iPad. Bring a sharp eye — and trust no one with an alibi that’s too neat.
Coming soonto the App StoreQuestions? [email protected]