The Rowan Maid — Catherine Darby

When old Rowan dies, her home in the Welsh mountains is inherited by her son's widow, Mina, and her two children, Cassian and Isobel. Into the valley move Jan Schneider and his mother, Huguenot exiles from the Low Countries. The scene is set for a love affair that goes tragically wrong, for there is evil at Rowan Garth and out of that evil is created Amethyst, the child who should never have been born, twisted branch on a twisted tree.