DCI Nelson receives anonymous letters letting him know that he has to look for a stone circle and all will be revealed. Those letters remind him of a previous dramatic case which ended with the death of a young child and two men (one of them a murderer). Meanwhile next to an archaeological dig on a beach in Norfolk a new site is started. The bones of a young girl (Bronze Age) are discovered but after futher excavation another,more recent skeleton is found. It is quickly identified as the remains of Margaret Lacey,a 12 year old girl gone missing some 20 years ago. Ruth Galloway is asked to give some forensic backup and is so one more time involved in a crime investigation run by Harry Nelson,lover,not lover,maybe lover… In the meantime, one of the original suspects is found dead,shot through the head in a more modern variation of a stone circle. There are of course many meandering storylines,a missing baby,a new baby for Nelson,druids and their outlook on life and a blast from the past …. To be fair,after the 10th instalment in this series, I was a bit fed up with this Nelson and Galloway thing,it basically took up most of the story! It is still a big deal and frankly I wish they just made up their minds,personally I think it doesn’t add anything of major interest …but the storyline is good,the tension is absolutely there ,the outcome suprising and it really was a very decent mystery story!