When the body of Pauline Brent is found hanging from a yew tree in a local graveyard, DS Wesley Peterson immediately suspects foul play. Then history provides him with a clue. Wesley's archaeologist friend, Neil Watson, has excavated a corpse at his nearby dig – a young woman who, local legend has it, had been publicly hanged from the very same tree before being buried on unhallowed ground five centuries ago. Wesley is now forced to consider the possibility that the killer knows the tree's dark history. Has Pauline also been "executed" rather than murdered, and, if so, for what crime? To catch a dangerous killer Wesley has to discover as much as he can about the victim.