11-year-old Elaine is sent from London to the countryside while her mother takes a job in Europe. At first, Elaine resents her situation, especially being foisted off on a boisterous family with six other children who don't seem to want her there, but then she finds an abandoned garden that she decides to make into her own special place.
If this sounds a bit like a cut-rate Secret Garden, you're not entirely wrong, though the garden is only really important in the first half of the story. The main plot centers on Elaine's discovery of Christianity and the development of her newfound faith. It's all terribly earnest, as is typical of mid-century religious writing for children, though there's some adventure by way of a mountain holiday and a desperate robber toward the end of the book. I can see this book finding a place in a church library. My edition says it's been revised with more modern language, but I'm not familiar with the original, so I can't tell you what's been changed.