Cute time-slip novel, suitable for upper primary/lower secondary readers.
Katy and her younger brother Patrick are engaging contemporary characters and the reader can easily relate to how they would be feeling when they wake up to find themselves in 1940s England!
My major reservation with this book is how they change the course of history - all for a good cause. But, as anyone who watches Star Trek knows, you can observe but not alter past events. So I kept asking myself, “Hang on, if they do that…..what happens to the future?”.
So, a huge suspension of belief is needed for this story to work successfully.