Tanya Sergeyeva was assigned a new, breathtaking investigation! She needs to prove that the famous actress Edita Zvonaryova didn’t die of pneumonia—she was murdered. And not just prove it, but also find that elusive criminal. That’s why Tanya runs around the city like a whirlwind looking for clues. She’s got more to come: she’ll have to try a sandwich with a plush rat, figure out why flowers instantly wither, and find out who—or what—is a microbe without complexes…