An action-packed thriller full of twists from a master of crime fiction.One day a young man arrives in Jelenia Góra, where he intends to visit his friend Prosty and repay a long-standing debt. When he gets there, however, he finds the flat ransacked. Empty, with no sign of Prosty. Instead, two muscular thugs turn up and start asking strange questions. They are far from polite, and soon fists are flying and blood is spilled. And so the man is accidentally drawn into a dangerous game. He knows neither its rules nor its players, but he soon learns that the stakes are much higher than anyone could have expected. The key to it all turns out to be Prosty, whom both the Jelenia Góra gangsters and the Czech mafia want to get their hands on. In the midst of this chaos, the Romani mafia also appears, constantly having its toes trodden on by someone. To reach Prosty and find out what it is all about, our hero will have to face them all. He will be helped by an analyst from the ABW."Prosta sprawa" is an action-packed thriller set in the picturesque Karkonosze mountains. Written during lockdown and initially published in instalments on the author's profile, it was a great success. Now it is appearing in print in a revised and expanded version.