Billy Brown is good at maths but bad at sports. He wishes it were the other way around. When the Queen is struggling with a maths problem, it's Billy's time to shine!Only Billy Brown can help the Queen with her difficult maths problem, and she gives him a big gold medal. But when the Queen then comes to stay with Billy's family eveything begins to get royally awkard.Then there's Billy's grandma, who used to be a spy ...A right royal riot of a read!'Clever, quirky, and oodles of queenly fun – suffering ducks, one was most amused!' — Alan Nolan, author and illustrator