The three !!! on a secret mission. At the Winklerhof, minks appear out of nowhere. At the same time, valuable vaccine doses are disappearing from the veterinary practice. Lana and Oskar are acting suspiciously, aren’t they? Both are involved in the animal welfare organization Fur and Paw. Do they have anything to do with the incidents? Who among them freed the animals? Page by page, Kim, Franzi, and Marie uncover the criminal case. They investigate the crime scene and observe the suspects. Excitement guaranteed!.