Drink for Shapoklyak

Sarafima came to a concert at school, but instead of pleasant impressions, she got a new case. She discovered the body of a chemistry teacher, whom the students nicknamed Alkaline for her quarrelsome nature. Surprisingly, Alkaline was poisoned. Ammonia was found in a bottle of lemonade that the schoolchildren had treated her with. Sarafima began her investigation, because that was the only way she could heal the love wounds caused by the betrayal of investigator Arseny…