Sarah Vine contrasts King Charles’s efforts to serve the monarchy with Earl Spencer’s criticisms of him in his memoir, *Swan Song: Diana, My Sister*. She argues that Spencer’s book, promoted through recent interviews, is less a tribute to Princess Diana than a self-serving attack that may damage his own reputation.

The article says Spencer challenges the King’s recollection and conduct after Diana’s death, while Vine questions his own actions, including his alleged failure to provide Diana refuge when she asked. It also criticises his BBC interview despite his condemnation of the broadcaster’s role in the Panorama interview, and compares the memoir with Prince Harry’s *Spare*, suggesting both may ultimately alienate the public.