You probably know homeowners who’ve come across a small but pleasant surprise they had no idea awaited them when they bought their property: tulips popping up where a previous owner planted bulbs, maybe, or the overgrown traces of a footpath through the woods. But there are surprises, and then there are. “We didn’t even know the waterfall was there when we bought it,” says Mary Palmer Dargan, of the ferny Rivendell of woods and streams that surround the homestead she and her husband, Hugh, gradually jigsaw-puzzled together
