Today, Kensington Palace shared a phone call between the Duchess of Cambridge and Mila and her mom Lynda discussing the photo they sent for Hold Still ahead of the launch of the Hold Still book tomorrow.

They talked about Mila’s ongoing treatment, how the photo came to be and why they decided to submit it for Hold Still. You can hear the full conversation below.

The Duchess of Cambridge wore her Whistles blouse which she wore for her engagement photo in 2011 with her Jigsaw trousers. She also wore earrings borrowed from the Queen and her Mappin & Webb necklace.