Prince William was today met with a shout asking if he'd been hurt by comments by Prince Harry as he appeared in public.
Footage of the heir to the throne arriving at a hospital in Liverpool today shows a member of the crowd asking: "Were you hurt by the comments in Harry's book, Sir?"
But the Prince of Wales did not respond as he made his way inside the building alongside wife Kate.
William is yet to comment about the controversial book, which makes a string of allegations about Harry's treatment at the hands of his family.
It includes a claim that Harry was knocked to the floor when his older brother lashed out at him as relations between the two deteriorated.
It also includes claims of a feud between Kate and Harry's wife Meghan Markle.
As they made their way into the Royal Liverpool University Hospital, there were loud cheers from patients and staff, who had turned out to catch a glimpse at them.
William and Kate, who was dressed in a tartan coat, are at the hospital to officially open it and thank staff for their efforts during the winter months, which are routinely a challenging period for the NHS.
They also met individuals working in mental health support services in the county.
Earlier they had been spotted leaving the Windsor Castle estate, with William looking relaxed and smiling as he chatted to Kate in the car.
The royals being out in force today comes as they are said to be putting on a united front after the release of the book.
They have told aides it is “business as usual” and sources said the senior royals would not be reacting to the tell-all memoir.
King Charles also carried out his first official engagement since the book went on sale by visiting the community of Aboyne, close to the late Queen’s Balmoral estate in Aberdeenshire, to tour the Aboyne and Mid Deeside Community Shed and meet local hardship support groups.
During the King’s Scottish engagement he was pictured in good spirits as he met wellwishers, who brought along their dogs.
Also carrying out engagements this week is Princess Anne, who has been in Cyprus meeting British Forces Personnel and their families.
Tipped by industry experts to be one of the year’s biggest books, Harr's memoir Spare contains a series of revelations about royal life.
According to the publisher, the English language edition of Spare sold more than 1,430,000 units in all formats and editions in the United States, Canada and the UK on January 10 when it first hit bookshop shelves.