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The Prince and Princess of Wales are choosing to keep calm and carry on after another bombshell book has rocked the House of Windsor.

Kate Middleton kept cool and collected as she had all eyes on her at a Buckingham Palace reception Tuesday. The mother of three wore Queen Mary’s Lover’s Knot Tiara, a favorite of her late mother-in-law, princess Diana.

She completed the look with Greville Chandelier earrings, a tribute to Queen Elizabeth II, who received the jewels as a wedding present from her parents when she married Prince Philip in 1947. “Her job is to support the Prince of Wales, Prince William,” Bullen shared.

“And she very rarely gives interviews. She very rarely makes it about her. She’s always keen to make sure that the prince is front and center. But make no mistake, she is a force to be reckoned with. She is very strong and very clear on what she wants to achieve.”

Despite the festive evening, a dark cloud has loomed over the palace following the publication of “Endgame.”

One of the controversial topics addressed in the new book by Scobie, who some say serves as an unofficial spokesman for Meghan Markle, are claims there were racist comments made by members of the royal family leading up to the birth of her son Prince Archie.