The Key of Yellow Metal

«The Key of Yellow Metal» — a book for those who love to solve secret codes hidden in ancient signs and objects. The main character of the book, 33-year-old Philipp Karlovich, is a «free man of the world» who has... the opportunity to relax, travel around the globe, and be bored. But one day, Philipp's life turns upside down. What happened was something he never even suspected. It all started with his father Karl, who asked Philipp, departing for a concert tour, to bring back from Prague an item — the key to a secret room in his old apartment. The fact is that Philipp's father has been obsessed with collecting old keys since childhood. He believed that there is always a door that matches a key from his collection. And in some cases, he succeeded. But here’s the paradox: in his own house, there is a mysterious door for which there is no key. Then unexpectedly, on one of the collectors' websites, he meets a person from Prague who claims to have the original key to Karl's door. Philipp goes to get the key and unexpectedly ends up in a fantastic entanglement.