Inspired by the harrowing true stories of those who hid from the Nazis in the sewers, this emotional testament to the power of friendship follows Ella, an affluent Polish girl, as she helps Sadie and her pregnant mother survive despite the worsening dangers of the war.

Having left Nazi-occupied Vienna a year ago, thirteen-year-old Jewish refugee Stephie Steiner adapts to life in the cultured Swedish city of Gothenburg, where she attends school, falls in love, and worries about her parents who were not allowed to emigrate.

Vienna. 1936. Three young friends--Leo, Elsa, and Max--spend a perfect day together, unaware that around them Europe is descending into a growing darkness and that events will soon mean that they are ripped apart from each other as their lives take very different directions... Inspired by a true story, this is an extraordinary novel that is as powerful as it is heartbreaking and shows the bonds of love, family and friendship allow glimmers of hope...