When fourteen-year-old Martin arrives to spend part of his summer vacation with his great-uncle in Rožmitál, he expects nothing but sheer boredom. What a surprise it is when an old key, given to him by his great-uncle, unleashes a whole series of incredible adventures! What does the key belong to, and what immense secret does it hide? Thanks to his investigation, Martin meets new friends Vojta and Gábina, and together they embark on an exciting quest to decipher codes and explore the local castle and an old, crumbling blacksmith's shop. Will they manage to uncover the mystery that the enigmatic Brotherhood of Key Keepers has guarded for centuries? The audiobook is intended for children aged 10 and up. Performers: Viktor Dvořák, Otakar Brousek Jr. Direction: Jindřiška Nováková Length of recording: 7 h 7 min. 1 MP3 CD
