"If it's the first time you two have been up the Downs you'd better listen to what I say. Keep away from this place. It's dangerous. Galleybird Pit it's called." With this harsh warning Lucy and Humf Brown find themselves caught up in a horrifying drama.
They see a little dog racing away from the pit and immediately after, Lucy and Humf find a dead lamb. The dog looked like Terry who belongs to their friend Mark - if that's so, the farmers intend to shoot him. How can the children prove that Terry isn't the sheep-killer?
Leonard Malcolm Saville was an English author best known for the Lone Pine series of children's books, many of which are set in Shropshire. His work emphasises location; the books include many vivid descriptions of English countryside, villages and sometimes towns.
I expect I read this in 1974 when I bought it; nearly fifty years later I've just finished it, possibly for the first time since I was a teenager. It's about 12-year-old Lucy and her younger brother Humf who have moved from the city to a small village in Sussex.
Nice family dynamics, though I don't think children would appreciate them, and Humf is a three-dimensional character, but the plot is a bit thin, and there's no 'secret' as such. Rather more unpleasant animal issues than I'm comfortable with, but this was written in 1959, and set in a farming community.
Perhaps a child of about nine or ten might like it, so long as they're not sensitive to unpleasant scenes involving animals; but I suspect this is mainly read by adults who have loved Saville's writing for many decades.