Der kleine Vampir und die große Verschwörung

Anna, Anton and Rüdiger try to find out more about Rant's dubious Igno. To do this, they take a closer look at Mr. Holzrock's "Erdmöbel" company. And then the mysterious Doctor Gans comes into play with his bright green van. Igno von Rant is aunt Dorothee's fiance - but is he also a real vampire?