A Royston mum and her sister are set to take on the Cambridge Half Marathon this weekend to raise funds for toys and books at Addenbrooke’s Hospital – where her son is a regular patient.

Royston Crow: They are running to raise cash for books, games and toys at Addenbrooke's, as Charlotte's son Harrison is a regular paitent due to Crohn's disease. Picture: Siobhan HolmesThey are running to raise cash for books, games and toys at Addenbrooke's, as Charlotte's son Harrison is a regular paitent due to Crohn's disease. Picture: Siobhan Holmes (Image: Archant)

Charlotte Butler is set to run the 13.1 miles to give back to the Cambridge hospital for the help and support that they have given to seven-year-old Harrison – who was diagnosed with Crohn’s disease in September last year.

Charlotte told the Crow: “On occasions, Harrison will be in Addenbrooke’s three to four times a week. One week he’ll be really good and the next he’ll be really bad.

“Crohn’s is an incurable disease so he has spent a lot of time in hospital, and will be in and out of the children’s ward for the next 11 years.”

Addenbrooke’s looks after more than 2,000 patients with bowel conditions like Crohn’s – which affects at least 115,000 people in the UK and millions more worldwide. Symptoms of Crohn’s disease include abdominal pain, diarrhoea, mouth ulcers, fever, tiredness, weight loss and anaemia.

Royston Crow: Siobhan Holmes at her first Cambridge Half Marathon in 2017. Picture: Siobhan HolmesSiobhan Holmes at her first Cambridge Half Marathon in 2017. Picture: Siobhan Holmes (Image: Archant)

Charlotte said “The hospital is absolutely brilliant. We have already met our £250 target to raise money for more resources such as books, games and toys on the ward.

“It’s amazing. The staff are fantastic and I can’t praise them enough – even down to the nurses on the ward. They have a great relationship with the kids, they have so much support and seem to understand what we’re going through.

“If I was to recommend others who wanted to raise money for charity I would say ‘just make it personal’ – it’s easy to give money to a massive organisation, but keep it local if possible and choose something that affects you and your life.”

Having completed months of gruelling training, the 31-year-old will be joined at the starting line on Sunday by sister Siobhan Holmes.

Royston Crow: Siobhan Holmes at the finish line of last year's half marathon Picture: Siobhan HolmesSiobhan Holmes at the finish line of last year's half marathon Picture: Siobhan Holmes (Image: Archant)

Siobhan went the distance last year for the first time and generated more than £1,000 for causes close to her heart.

She chose Cancer Research UK in memory of her grandmother Irene, and the Worster-Drought Syndrome Support Group, which is for families of those with a rare type of cerebral palsy, and has helped friend Kerry Jones and her son Ronnie, who has the condition.

Go to www.justgiving.com/crowdfunding/siobhan-holmes-1 to donate to the sisters’ Addenbrooke’s fundraiser.

Royston Crow: Harrison's siblings. Lara-Mai, Ty, both 10, Macey, seven, and Emily, four, Picture: Siobhan HolmesHarrison's siblings. Lara-Mai, Ty, both 10, Macey, seven, and Emily, four, Picture: Siobhan Holmes (Image: Archant)