The story revolves around Annemarie Braun, who is called Nesthäkchen, the youngest child of a doctor's family.
Annemarie grows up with her brothers Hans and Klaus in Berlin during the imperial era shortly before the First World War.
He and his wife Elsbeth have a Prussian marriage and educate their children in the virtues of the imperial era.
There she experiences adventures with the dangerous Wadden Sea and the kind-hearted sanitorium director Mrs. Clarsen, a captain's widow.
A happy reunion ensues, but the advent of the World War has a tragic effect on the family: The older brother wants to volunteer for the navy.
The story continues in Ury's books, which recount almost all of Annemarie's life: her teenage years, her university studies, her marriage, and even her first great-grandchild.