In this book by the classic of Austrian children's literature, Christine Nöstlinger, you will find a new batch of stories about Franz, who will soon be nine years old. Franz is in second grade, and everything is great with him, except for one thing: a boy named Yoshka offends Franz all the time. Yoshka is a terrible braggart. He teases Franz that he doesn’t have a four-color pen, construction set, camera or anything else that he himself has. One day Yoshka did something very rude: knowing that Franz didn’t have a grandfather, he showed off his own. Franz could not stand it and replied that he also had a grandfather. But Yoshka didn’t believe him. The guys rushed to defend Franz and even argued that he wasn’t lying and would soon show everyone his grandfather. So what should Franz do now? Where can he find his real grandfather? It seems that only one person can save Franz - his beloved grandmother...