Jörgensen And the Man Who Didn't Exist: Thriller

A high-ranking cryptographer from the German Federal Intelligence Service (BND) vanishes without a trace. But the true crime is far more sinister than a simple kidnapping: his entire digital existence has been wiped out - emails, accounts, his entire past. It's as if the man had never existed. For the authorities, the case is a dead end. For Inspector Jörgensen, it's a personal nightmare. Because the only clue the perpetrator leaves behind isn't DNA, not a fingerprint, but a bizarre, personal symbol: a yellow rubber duck that directly references one of Jörgensen's very first, long-forgotten cases. The message is clear: Jörgensen's new adversary knows his past and is playing a devious game with him.
To hunt down this invisible enemy, who seems to know his most intimate secrets, Jörgensen must reactivate an alliance he swore he would never enter into again - a partnership with an artificial intelligence whose power is as alluring as it is dangerous. Because in this duel, Jörgensen is no longer just the hunter. He is the prey.