Inspector Roboseau: The Fisherman's Ring

When the legendary Fisherman's Ring of Pope Celestine V disappears during a private Paris exhibition, the case appears to be a high-profile murder tied to an international artifact theft.

Enter Inspector Roboseau — R.O.B.O.S.E.A.U. Unit 7, Reasoning and Observation Bot, Optimised for Serious Evidence Analysis and Uploading. Built to revolutionize criminal investigation, Roboseau possesses flawless logic, perfect memory, and one major flaw: he learned detective work from old crime television.

As the investigation spreads across Paris, Rome, London, New York, Istanbul, and Hong Kong, Roboseau transfers his consciousness into rented police robot bodies — each with strange software bugs, cultural quirks, and mechanical problems. One body speaks in Shakespearean English. Another insists on dramatic interrogations. A third launches into rooftop parkour during stakeouts.

Meanwhile Roboseau constructs an elaborate theory of a centuries-old international conspiracy.

There's just one problem. The case might not be a murder at all.

But logic has never stopped a great detective before.