The Well by Catherine Chanter
When Ruth Ardingly and her family first drive up from London in their grime-encrusted car and view The Well, they are enchanted by a jewel of a place, a farm that appears to offer everything the family are searching for. An opportunity for Ruth. An escape for Mark. A home for their grandson Lucien.
But The Well's unique glory comes at a terrible price. The locals suspect foul play in its verdant fields and drooping fruit trees, and Ruth becomes increasingly isolated as she struggles to explain why her land flourishes whilst her neighbours' produce withers and dies. Fearful of envious locals and suspicious of those who seem to be offering help, Ruth is less and less sure who she can trust.
As The Well envelops them, Ruth's paradise becomes a prison, Mark's dream a recurring nightmare, and Lucien's playground a grave.