Our deepest sympathies, heartfelt support and best wishes are with Sarah and the rest of the Threlfell family following the tragic death of Sarah's sister, Helen.

From all of Sarah's colleagues at the University of Oxford.

Thanks for taking the time to visit my JustGiving page.

Donating through JustGiving is simple, fast and totally secure. Your details are safe with JustGiving – they’ll never sell them on or send unwanted emails. Once you donate, they’ll send your money directly to the charity. So it’s the most efficient way to donate – saving time and cutting costs for the charity.