Congratulations to you if you cracked the case of the title of my new book! The full cover of The Body in the Blitz will be revealed next week, on the 20th of April – I can’t wait for you to see it! But before I show you what it’s going to look like, I have one more puzzle for you to solve. What colour will it be? The lovely team at Puffin have put together this graphic – but which colour have we chosen? Check back here on the 20th to discover the truth…