I found this story appropriate for young children to understand the dynamics of the holocaust, and inspire them to help out others even when it is dangerous to do so. 
 The story is told through the perspective of a 10ish year old girl, complete with all her insecurities and jealousies. The reality of the situation is stark, and it is emphasized that the children did not have enough food. I think it best to deal with such a heavy theme in small doses and this book is not long, at 76 pages divided into 5 chapters. The children display courage, bravery and cleverness in a dangerous situation. And, partly due to one of the investigators being 'on the right side', it has a happy ending. 
 I found it helpful to step away from the storyline to ask my student questions that would help to clarify the tension. Why was the chocolate so exciting? How long have you gone without having ANY chocolate? Where is Sister Gabriel? Are the Nazi soldiers good or evil? What is the children's plan? etc. In case of jam ups, I provide multiple choice answers. 
 This book made an excellent complement to our modern history study. However, the subject matter may be frightening for young children, and parents of sensitive children will want to preview it. Also, the book does not provide any background. It merely states that the children were in France during WWII and that France was occupied by the Germans. Children unfamiliar with the setting will need more information and should probably not be exposed to this book without it. 
 This is a strong contribution in a difficult genre. Highly recommended.