Nine-year-old Rueben Walder is battling a brain tumour, less than three years after his mum died from breast cancer.
Despite undergoing two lots of brain surgery and months of chemotherapy and radiotherapy, Rueben is using any minute of spare time to raise money for charity.
In the six months since his diagnosis, he's raised almost £10,000 for Candlelighters in Leeds.
Rachel Townsend reports.
- If you want to find out how you can help Rueben in his effort to raise even more money for Candlelighter who are 100% reliant on public donations, click here.