Barta has been investigating for a year in the murder case of a professor of medicine. Keller, the victim, has been shot dead in his own villa. Barta...
In 1919, in Petrograd, a pilot Sevastyanov was asked to help in training flight personnel for the young Hungarian republic, together with a Hungarian...
Luciano, the clown of a circus, can predict who will win in the snooker. His mathematical algorithm seems to be working in every gamble provided that...