London auctioneer Jude Gower is despatched to Wickham Hall near the North Norfolk coast to value a collection of eighteenth century astronomical instruments and manuscripts. As well as the archive, the house itself intrigues Jude: her great-grandfather was gamekeeper on the Wickham estate between the wars. On the drive up Jude stops to visit her grandmother, who alerts her to a mystery involving a folly on the estate, and someone she refers to only as 'the wild girl'. Amidst the cold classical beauty of Wickham Hall, Jude is welcomed by elderly Chantal Wickham. Chantal's husband died a year ago. Jude is deeply sympathetic because she, too, has lost her husband. Chantal's son is selling the collection to pay death duties. Since WWII the farm land has been sold off and Chantal's husband had to sell the woodland, including the ground where the folly stands. Now a developer has plans which will involve knocking it down. Though derelict, the folly has strong historical and sentimental meaning to the Wickham family, so they are particularly upset. As Jude catalogues the manuscripts and scientific instruments, she starts to amass a picture of Anthony Wickham, the lonely amateur astronomer who owned the Hall in the late eighteenth century, and his daughter Esther. She learns that the folly was built as an observatory: it stands in a clearing in the woods, its top just visible above the trees. From here Anthony and Esther made their important discoveries. And it is here Jude meets Euan, a local nature writer living in a gypsy caravan. As Jude uncovers the tragic story of Anthony and Esther, Euan reveals to her the healing powers of nature and the eternal stars. Gradually Jude learns to leave behind the tragedy in her own life, and to love again.