Daily Star's biggest headlines straight to your inbox!Royal fans have spotted Prince William's touching tribute to his late grandfather Prince Philip in his office.The Duke of Cambridge announced the upcoming release of a book Earthshot: How to Save our Planet and posted a teaser video on Instagram today (September 17).In the short clip, the smart-dressed prince walks into a room and sits down in front of a desk before he starts typing on a typewriter: "The sight that greets you on arrival."He then puts his name "Prince William" on the right to sign off.The duke also posted a message: "In my introduction to Earthshot: How to Save our Planet, the authoritative book of The @EarthshotPrize, I wanted to share the early conversations in 2018.
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