The case of the grape earring

A mission led by Slavomir and Eric brings the Greek brothers Constantine and Methodius to Moravia. A year later we find the Greek brothers, whose popularity among the Moravian people is growing rapidly, in full work. But as Slavomir discovers, Constantine and Methodius are in great danger. Together with Erik, Slavomir vigorously embarks on a dangerous search to protect the Greeks. Dramatic events culminate again at the fortress of Devin, where King Rastislav is surrounded by Frankish troops. Slavomir has to cope with this, historically documented, dangerous situation for the Moravian Empire...