I would rather give this book 4.5 stars instead of 5, but since that's not an option, I graded up. This book is set in two different time periods, told by two different people. Sarah, a 10 year old girl who is rounded-up (along with her parents) with the other Parisian Jews by the French Police in 1942. It follows her journey to the stadium where, amid horrible conditions, they are forced to wait to go to a camp; then to the camp where she is violently separated from her parents; and then escaping to the countryside and finding refuge with elderly farmers. Once finding these kind souls, she makes her journey back to Paris to try and find her little brother that she had locked in a cupboard for safe keeping. 
 The other narrator is Julia, an ex-pat American woman who is researching the 1942 roundup of Parsian Jews and realizes that her in-laws, and their apartment, were witness to what happened and are keeping a dark secret. 
 Sarah's story was very eye opening and heart-wrenching to read. I liked it very much. However, I really didn't "get" or really care about Julia's story. Her husband's bad behavior didn't do much for the story at all and I didn't understand why Julia needed so badly to track Sarah's family down or why she couldn't move on and let it go. I also don't understand (and perhaps this is because I am not French) why her in-laws would keep secret what they did. Was it horrible? Absolutely. Was it worthy of never being discussed? No. 
 However, even with the modern day story and the parts that didn't seem right to me, it is a wonderful book and important if it educates people on the Vel' d'Hiv' roundup and reminds the ones that try to forget it that it did happen and you cannot forget.