Solve It: Cold Case Missing Files Case No. 1973
The case went cold. The questions did not.
Welcome to Solve It: Cold Case Missing Files Case No. 1973 an interactive cold case mystery book inspired by the uneasy atmosphere of 1970s America, when people could vanish between highways, campuses, motels, and small towns, leaving only fragments behind.
Inside these pages, each disappearance is presented like an investigative dossier. You will find concise case summaries, unresolved leads, background profiles, quick-read briefings, and investigator notes that invite you to question what happened, what was missed, and which details still refuse to settle.
This is not a book about racing to the answer. It is about opening the file, studying the clues, following the loose threads, and deciding what the evidence suggests. Some cases begin with an abandoned car. Some with a missing suitcase. Some with a voice on a tape that should have said more.
Though fictionalized, each file is built to capture the haunting mystery of those who disappear and the questions left behind when a story goes cold.
So clear the desk, turn on the lamp, and open the first file.
1973 still has something to say.
The file is waiting. Start with the first lead.
The Evidence Room
Cold case mystery books, missing files, clues, timelines, and investigator-style prompts for readers who like to examine the evidence themselves.
The year is 1973, and the missing files have been reopened. Step into a vintage-inspired cold case investigation filled with vanished travelers, abandoned clues, open leads, and the unsettling question every file leaves behind: what really happened?
The Library
New releases and recent arrivals from Hidden Signal Media, freshly filed for anyone ready to open the next book.
A complete Regency scenario collection of secrets, rivalries, scandals, house party intrigue, and social strategy, where every choice may protect a reputation, ruin a season, or make a legend.
A Regency scenario book of secrets, rivalries, whispered scandals, and social reckonings where every choice may protect a reputation, destroy an alliance, or turn one misstep into legend.
A Regency scenario book of house party scandals, whispered secrets, dangerous flirtations, and social choices where one wrong word can ruin a reputation or make a legend.
A Cold War scenario book where every decision carries risk, every alliance feels uncertain, and every answer reveals what kind of operative you might have been.
A World War II scenario book where every choice carries weight, every duty has a cost, and survival may depend on what you are willing to risk, protect, or leave behind.
A World War II field agent puzzle book where every cipher, clue, and mission challenge tests whether you have what it takes to think like a wartime operative.
A World War II recovery mission book where every missing aircrew, crash site, coded roster, and hidden clue brings you closer to the truth buried across wartime Europe.
A Cold War cocktail party game book of secrets, missions, suspicious behavior, and social strategy, where every guest may be charming, clever, or very possibly a spy.
The year is 1973, and the missing files have been reopened. Step into a vintage-inspired cold case investigation filled with vanished travelers, abandoned clues, open leads, and the unsettling question every file leaves behind: what really happened?
An elegant chinoiserie-inspired coloring book for anyone who prefers their quiet time with peonies, porcelain, and a little unnecessary beauty. Open it, choose a page, and let the peacocks behave dramatically on your behalf.
The Evidence Locker
Featured series from the archive, including glamorous coloring books, society games, travel escapes, and vintage-inspired amusements.
A downed airman reaches a cottage with blue shutters in occupied France. The signal cloth is missing. The password almost works. With a vehicle approaching on the road, he must decide whether the house is shelter or a trap already closing around him.
A letter appears where it should not be: tucked inside Miss Evelina Hartwell’s reticule after a private card party in Bath. The difficulty is that Mr. Laurence Ashford is already expected to marry another lady, a match arranged as much for money as for love.
A Czech academic carries a list of dissidents hidden inside a book of poetry. It may save lives. It may expose everyone involved. In 1978 Prague, an embassy officer must decide how not to risk turning a literary evening into an international incident.
In February 1944, RAF Mosquito bombers struck Amiens Prison in a daring attempt to free Resistance prisoners before execution or deportation. But rescue came with a terrible risk: the bombs meant to save them could also kill them.
A bonus personality quiz from the Hidden Archive for readers of Proof & Consequence: Cold War Edition, where ten suspiciously stylish questions reveal which Cold War city matches your personality. No passport, trench coat, or security clearance required.