Seven unsolved murders. Seven substituted pages. One hidden confession.

Archivist Imani Rook discovers a page concealed inside the wrong murder file. It might have been dismissed as an archival mistake—except the paper, language and placement suggest that someone put it there deliberately.

Then she finds six more.

Each substituted page has been hidden inside a different unsolved murder investigation. When the pages are arranged according to their paper-manufacture dates, they form what appears to be a confession to an eighth crime—one that was never reported.

Now the files have been marked for destruction.

The authorization carries Imani's credentials.

Someone Replaced the File is a complete, book-only cold-case investigation for one reader or a cooperative group. Examine conflicting documents, reconstruct timelines, study access records and determine who manipulated the archive—and why.

The investigation includes:

•Eight interconnected case files
•Seven deliberately substituted pages
•Document-forensics challenges
•Seventeen fairly presented clues
•Timelines and suspect comparisons
•A three-level hint system
•Four consequential decisions
•A formal final accusation
•Six investigator-performance classifications
•Four replay variations
•Fourteen printable worksheets
•A complete annotated clue trail
•A sealed solution and epilogue

Everything required to solve the mystery is contained in the book.

No Game Master. No dice. No app. No internet. Just the files—and your judgment.

Part of the Brown Wolf One-Night Investigations series.