Franz is by far the smallest in the class, has blond ringlets and gets a high-pitched squeaky voice when he gets upset. Luckily, two best friends help: Gabi and Eberhard. When Franz discovers Hank Haberer's "10 rules for a real … Jossi Jantschitsch, Nora Reidinger, Leo Wacha, Ursula Strauss, Simon Schwarz, Brigitte Kren, Philipp Dornauer Added on Amazon Prime 2023-02-13.