1939: Nerys Watkins leaves rural Wales to accompany her husband on a missionary posting to India. Travelling from lonely Ladakh, high in the Himalayas, Nerys discovers a new world in the city of Srinagar. Here, in the exquisite heart of Kashmir, the British live on carved wooden houseboats and dance, flirt and gossip as if there is no war. But the battles draw ever closer. Nerys is caught up in a dangerous friendship, and by the time she is reunited with her husband, the innocent Welsh bride has become a different woman.

Years later, when Mair Ellis clears out her father's house, she finds an exquisite antique shawl which holds a lock of child's hair. Tracing her grandparents' roots back to Kashmir, Mair embarks on a quest that will change her life forever.