The Invisible Thief

In the cafe "Books and Mugs", barista Anna and her fiancé Roman had their wedding. Akim's eccentric grandmother, Barbara, and his mother gave the young couple gold pendants with engravings. But Anna couldn't find them among the other gifts.

Disappointed, Barbara was extremely unhappy. She had chosen this gift herself! Soon, an exhibition opened in the city featuring a rare ancient coin from the 10th century. But alas, in the evening, the artifact vanished without a trace right before the eyes of visitors! Both the pendants and the coin disappeared! Akim and Barbara decided to conduct their own investigation.