[Music] you lead the way as a summer comes to an end I cannot tell you what a relief it is to finally completed my chemotherapy treatment marking the end of her 9mon health battle Catherine the Princess of Wales has delivered a personal message in a strikingly intimate video released by Kensington Palace the cancer journey is complex scary and unpredictable for everyone especially those closest to the 3-minute video filmed last month shows the Royal Coupes spending time with their three young children and Catherine's parents in Norfolk is just filming hello hello she describes how incredibly tough it has been for her family since major abdominal surgery in January found cancer had been present it's a feeling shared by King Charles who's also been undergoing cancer treatment after his diagnosis in February doing what I can to stay cancer free is now my focus after being out of sight for much of the Year princess Katherine made her first public appearance here at Buckingham Palace for the King's Birthday parade in June she says she will be attending a few more engagements over the coming months sending a positive signal about her progress but this is not the end of the journey for the Princess of Wales she says the path to full recovery will be long it's very rare to see that sort of personal video from the royal family so I I think they are really connecting with the public here they want to show that Katherine is on our way back it's a slow course um but hopefully we're going to see her out there soon to all those who are continuing their own cancer journey I remain with you side by side hand in hand a message of understanding to other families facing this same battle Ronnie Heyman ABC News London