About the Book: In 1940, as bombs rain down on London, 11-year-old Eric has a plan: to rescue his best friend, Gertrude the gorilla, from the London Zoo. With the help of his Uncle Sid, a zookeeper, they escape the city. While hiding out by the sea, they uncover a top-secret Nazi plot, and this unlikely trio might just be the heroes Britain needs. This is a story of incredible bravery, surprising friendship, and a gorilla that could save the day.