"Mystery ads" in Scottish press promote Paul's book on September 28, 2021 Grandude's Green Submarine (children's book by Paul McCartney) Hey Grandude (children's book by Paul) +
A sequel to Paul's children's book on the way: "Grandude's Green Submarine" - UPDATED with more info on March 18, 2021 Grandude's Green Submarine (children's book by Paul McCartney) +