What is the main point/idea of this book?

World War II is a blessing in disguise for ten-year-old Ada Smith in the novel “The War That Saved My Life,” by Kimberly Brubaker Bradley. Because Ada has a clubfoot, her mother forces her to live her childhood locked in the family’s one-room apartment. Once Ada escapes the apartment she realizes there is a world outside that apartment that she never knew existed. With the help of her guardian, Ada realizes there is a place for her in that world and that Ada is worthy of love. Themes in the novel include a lesson on the different types of truth and lies, the dangers of judging a person based on appearances, the path to recovering from abuse and the downfalls of seclusion. The reader will also learn a good deal about life during World War II through Ada’s story.