This book is the second of a trilogy written by Judith Kerr about WWII. It is a complete novel however and can be read on its own.
Judith Kerr was a German refugee who moved to London with her family to avoid Nazi persecution. This semi-biographical novel tells about her experiences as a young Jewish girl in London during the war. Through her account we learn something about the community of refugees and how they related to the British society. Judith Kerr did not live through the violence against Jews that was instigated by Hitler so this book is more about the war from the perspective of the British.
It is nicely written and acts as an interesting Ethnographical/historical account of society during WWII - but it also reads as a 'coming of age book about a young lady relating to her family and trying to find love during a troubled era.
This book serves as a great opportunity to learn history as an 'insider' - from the perspective of one who lived through it. Luckily for us, this someone was also a talented writer who presents her experiences with an artful manner.
The reason I have set the minimum age for this book at 18 is because it contains a 'romantic relationship' of sorts between a minor and a middle-aged man. It all comes out well in the end however.