The museum is hosting a unique exhibition of historical jewellery that attracts people from all over Europe. Today, the most valuable exhibit has been stolen - the necklace of Queen Elisabeth. Your team of agents from the Security Information Agency has been called to the crime scene to investigate the disappearance of this jewel. Do you have the skills to catch the thief and recover the necklace?
In this detective adventure game you will be solving puzzles and ciphers that will lead you through the historical centre of Hradec Králové. You will play outside with the help of an app on your smartphone. If you don't happen to know the solution, there are several hints available. But for every hint you use, you will be given a penalty time. The goal is to solve the case in the shortest time possible.