This immensely satisfying novel will remind fans of author Edward Bloor's first book, Tangerine, in its complexity, empathy for the downtrodden, and sweet revenge scenario in which the bullies, child and adult, get what they so richly deserve.

The addition of a fascinating historical element enriches the tale. While many aspects of World War II have been repeatedly addressed in children's books, including the evacuation of children from London, rarely has the life of ordinary Londoners who stayed behind been depicted so intriguingly -- and horrifyingly. Many readers will want to know more about this time and place that is so miserably reflected in today's world.

The book is not without its flaws. The only marginally likable adult is Martin's father, a sad sack, helpless alcoholic who is kind -- which gives him a leg up on any other adult here. And the revenge scene, so enjoyable in its way, is marred by a laughable lack of consequences. But these are quibbles that will barely be noticed in such a moving and satisfying story.