Meghan Markle's children's book features a 'Prince Harry lookalike' who dons military uniform and cradles his son.
Royal expert Angela Levin pointed out that the Duchess of Sussex's new work The Bench includes a red-haired soldier wearing a US Army uniform.
The man bears an uncanny resemblance to Prince Harry, who served in the British Army and shares a son and daughter with Ms Markle.
The Duchess of Sussex's new book captures the 'special relationship between father and son, as seen through a mother's eyes', Ms Levin told Sky News.
The book is inspired by the relationship between Prince Harry and his first-born Archie.
The book was inspired by Prince Harry's relationship with his son Archie
On the page showing Prince Harry's 'lookalike' hugging his son, a woman can be seen watching the reunion in tears.
The caption accompanying the picture says: "Looking out at my love and our beautiful boy… And here in the window I'll have tears of great joy."
Ms Levin, who wrote Harry: Biography of a Prince, told Sky News that the red-haired soldier in The Bench was 'obviously a caricature of Prince Harry', according to The Sun.
Ms Markle's book also has a touching reference to her new daughter Lilibet.
The Duke of Sussex served in the British Army for 10 years
In The Bench's final illustration features a red-haired man helping a young boy feed chickens while a woman stands in a garden cradling a baby – possibly a nod to Lili.
The scene appears to be heavily influenced by Harry, 36, and 39-year-old Meghan's life in Montecito, Southern California.
As well as the chickens – which appeared during the broadcast of the couple's bombshell interview with Oprah Winfrey in March – two dogs also feature in the illustration.
The Duke and Duchess also have two dogs – a black Labrador named Pula and a beagle named Guy.
Over the final pages of the book, a caption reads: "Right there on your bench, the place you'll call home… With daddy and son… Where you'll never be 'lone."
The last five words accompany a drawing apparently showing the couple's idyllic lifestyle in California, where they moved to after stepping down as working royals for financial and personal freedom.
The book is the second publication the Duchess has been involved with after being the driving force behind Together – a cookbook featuring recipes from Grenfell Tower women