{"schema_version":"bf_book_companion_v1","release_id":"20260417T143742Z-pairingsrefresh","book":{"amazon_purchase_url":"https://www.amazon.com/dp/1534499652?tag=bookfrontier-20","asin":"1534499652","authors":["Liz Kessler"],"book_id":"9781534499652","canonical_url":"https://bookfrontier.com/books/when-the-world-was-ours-1534499652","cover_image_url":"https://img.bookfrontier.com/9781534499652.jpg?v=20260417T143742Z-pairingsrefresh%3A2026-04-17T14%3A37%3A42Z","description":"From the New York Times bestselling author of the Emily Windsnap series, Liz Kessler, comes a “brutally honest and totally believable” ( Booklist , starred review) story of three young friends whose fates are intertwined during the devastation of the Holocaust—based on a true story. Three friends. One memory. 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 they will soon be cruelly ripped apart from one another. With their lives taking them across Europe—to Germany, England, Prague, and Poland—will they ever find their way back to one another? Will they want to? Inspired by a true story, When the World Was Ours is an extraordinary novel that is as powerful as it is heartbreaking and that shows how the bonds of love, family, and friendship allow glimmers of hope to flourish, even in the most hopeless of times.","forthcoming":false,"isbn13":"9781534499652","publication_date":"20210518","publisher":"Aladdin","slug":"when-the-world-was-ours","subtitle":"","title":"When the World Was Ours"},"discovery":{"categories":{"all":[{"bisac_code":"YAF024070","confidence_band":"medium","label":"Holocaust Stories for Teens","score":0.8669,"source":"bisac_hint_model"},{"bisac_code":"JUV016060","confidence_band":"medium","label":"Holocaust Stories","score":0.8581,"source":"bisac_hint_model"},{"bisac_code":"JNF025090","confidence_band":"medium","label":"Holocaust for Kids","score":0.8381,"source":"bisac_hint_model"}],"hint":[{"bisac_code":"YAF024070","confidence_band":"medium","label":"Holocaust Stories for 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