"The Bench," a book about the connection between father and son as seen through a mother's eyes, was released on June 8.
The book was inspired by Harry's relationship with the couple's 2-year-old son, Archie Harrison. Markle wrote a dedication to the pair on the opening page: "To the man and the boy who make my heart go pump pump."
The book, which was penned before Lili was born, appears to include a heartfelt tribute to the new addition to the family.
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The final lines of the book read: "Right there on your bench, the place you'll call home... With daddy and son... Where you'll never be 'lone."
The final line is accompanied by an image of a family of four, closely resembling Harry, Markle, and their two children.
As shown in The Telegraph, the final page of the book shows a red-headed man helping his son feed chickens, while a dark-haired woman stands in the garden nearby cradling a baby.
Two dogs, which resemble the family's black Labrador, Pula, and beagle, Guy, are also included in the illustration. The couple also have rescue chickens, which they showed Oprah during their sit-down interview in March.
The book was illustrated by Christian Robinson and will be published by Random House Children's Books.
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Markle narrated the audiobook, which is being released in the US and Canada by Listening Library, an imprint of the Penguin Random House Audio Publishing Group.
Representatives for the Duke and Duchess of Sussex did not immediately respond to Insider's request for comment.
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