Meghan Markle‘s debut children’s book, The Bench, is finally on shelves, and there’s a special surprise in store for devoted royal fans. The Duchess of Sussex, 39, subtly paid tribute to her and Prince Harry‘s baby girl, Lilibet Diana Mountbatten-Windsor, through the illustrations in the book, dedicated to relationships between fathers and sons, with a touching nod to Prince Harry and the couple’s two-year-old son, Archie Harrison Mountbatten-Windsor.