The case for Kwiatkowski. The case at the circus "Campano"

Kwiatkowski is a real detective who loves Carpenter's milk and chewing gum. Instead of homework - he has night ambushes, instead of children's entertainment - dangerous adventures. Any of the most intricate crimes is doomed to failure if he sets to work.
This time the young detective will have to deal with a strange incident in the circus, which at first glance seems accidental. Will Kvyatkovsky have enough imagination and dexterity to unravel the cunning combination? Detective begins investigation!