He Kept Every Secret in Code. Someone Just Stole the Key.

Step Into the Story

Anton Draganov died quietly, of a heart attack, in his own home. Within a week, his private study had been searched and the one thing he never let anyone touch — a lifetime's worth of secrets, kept in a cipher only he was supposed to understand — was gone.

For decades, Anton was one of the region's most careful black-market antiquities dealers: never flashy, never caught, and — it turns out — never entirely honest even with the people who trusted him most. His personal ledger wasn't just old business. It was proof of exactly what he took, and from whom, across a lifetime nobody else ever fully saw.

Not police work — a recovery, and a race

You're investigating for The Provenance Trust, a private cultural-heritage recovery organisation that had been quietly building a case against Anton for years, waiting for the right moment to either prosecute him or negotiate the return of what he'd taken. His death didn't close that file. It may have just made things harder — because whoever has that ledger now has decades of his secrets, and at least one shipment of genuinely stolen antiquities he never actually delivered.

Nobody's died as a result of the theft. Nobody's called the police, and nobody's going to. What's actually at stake is whether a hidden cache of looted cultural property gets returned to where it belongs — or vanishes into the market for good, in the hands of whoever gets there first. That might not be you.

A house full of mourners, and only one who went into the study

The memorial gathering after Anton's funeral brought together everyone who ever had a reason to care what happened to that ledger: a relative back in the country for the first time in years, a business partner of two decades who gave a short, genuine remembrance to the room, and the caretaker who'd managed Anton's house — and, it turns out, spent a great deal of time near that study — for his final eighteen months.

During that fifteen-minute remembrance, with the whole gathering's attention on one room, the rest of the house sat essentially unwatched. Someone used that window. Working out who requires more than a guess — you'll need an alibi, a motive, and an opportunity that actually survives being checked against the minute.

What you'll actually be doing

This is one of our more demanding cases: a genuine substitution cipher to work out for yourself, using a photograph, a shipping record, and one deliberately misleading example designed to teach you the mechanic without handing you the answer. Once you've got it, you'll be applying it to a real coded ledger entry — and reading three separate accounts, one of which was never meant to be found at all.

By the end, you'll need to say — clearly, and with evidence — who actually took the ledger during the gathering, what drove them to it, how they had the opportunity in that one specific window, and why the other two names on your list aren't, in fact, responsible.

If you want to judge this one against anything else on the market first, the nine checks in our buyer's guide are the same ones we hold our own cases to.