It started with a post on Facebook. I still used it heavily, back in those days, and had just joined a new group which posted about playgrounds in the local area. I was looking for one with a bird’s nest swing, I remember, and this group had a handy map showing where they all were. One rainy lunchtime, I was browsing through my feed and idly wondering whether I could face getting up and heading out for a walk when I came across a picture someone had posted up near Caldecotte Lake. It showed a beautiful gothic doll in a black gown, perched in the branches of a tree. The poster had been out walking his dog, and was asking if anyone knew who it belonged to. No-one had replied. Intrigued, I headed for the door before I could change my mind.