London

Unfortunately, there is limited information available about the book "London" by Hilary Mahoney. The search results do not provide a comprehensive overview, plot summary, or critical reception of the book. However, here are some general observations and potential leads:

1. Author Information: Hilary Mahoney is an author who has written books, but specific details about "London" are not readily available from the sources provided.

2. Book Details: There is an ISBN for a book titled "London" (ISBN 10: 190311487X), which suggests it is a published work. However, no detailed information about the plot or themes is available from the provided sources.

3. Historical Context: Given the title "London," it is possible that the book might be set in London or explore themes related to the city. However, without specific details, it is difficult to speculate further.

4. Alternative Books: If you are interested in books set in London or during wartime, there are other notable works like "Embers in the London Sky" by Sarah Sundin, which combines World War II history, romance, and mystery, and "A Prince and a Spy" by Roland Clements, a historical thriller set in post-WWII London.

In summary, while there is some indication that "London" by Hilary Mahoney is a published book, detailed information about its plot, themes, and critical reception is not available from the provided sources. Further research or direct access to the book's description or reviews would be necessary to gain a comprehensive understanding of the book.