Follow Me To Ground - Sue Rainsford - Bog

Ada was raised from a patch of land called the Ground which bears birthing and healing properties. She and her father never age, but heal the ailments of the local humans. Ada falls in with one of these named Samson, forced to choose between her old life or a new, more human life, with this latter set to have pervasive consequences. Similar to "Ghost Wall" and "Lanny".