As many of you will know, Harper's good friend and class mate Flo, has recently passed away having battled Neuroblastoma for the last two years. She was 8 years old. You can find her story on Instagram (@fundraising_for_flo) 

I have decided to run the London Marathon (my first ever marathon) to raise money for Make-A-Wish® UK because they granted Flo's wish a couple of months before she died and they have given her family memories that they can cherish forever. They are one of a number of charities that supported Flo and her family in some of their darkest hours.

The charity grant life-changing wishes for the thousands of critically ill children across the UK. Sadly, the number of wish enquiries from seriously ill children with less than a year to live is rising fast. They need help to meet this urgent demand now - before it’s too late. For families with critically ill children, like Flo and her family, every day counts. Your support has the power to make a wish come true for a critically ill child, allowing families to create lasting memories that they will treasure forever – no matter what the future holds.