Hemlock at Vespers

Bok av Peter Tremayne
In the year 666, Sister Fidelma goes to a remote valley whose inhabitants still adhere to ancient Druidic ways. As they approach the valley, Fidelma and her companion come across the bodies of 33 young men ritually killed and laid out in a Druidic pattern. Are these murders the work of the local pagans or something more sinister?