Labyrinth of footprints

In the idyllic Salisbury countryside, a dog walker discovers human remains in a badger sett. A few days later, a second victim turns up in a nearby pond and Inspector Ford is convinced the murders are linked. The victims were found near the Alverchalke estate. One victim was an eco-activist, the other a petty criminal and poacher. Inspector Ford and Dr Fellowes are convinced that there is more to this case than trespassing and are trying to find the hidden link.