Called to the bloody aftermath of an occult ceremony in a secluded woodland dell, Detective Constable Bradley Maunder, Teena's brother, convinces the senior investigating officer to bring Mal in as an advisor, leaving Carolyn and Teena to investigate the Riley haunting. Mal quickly realises that the occultists have summoned something, and as more evidence is uncovered, discovers that Camulos, the Celtic God of Warfare, is loose in the woods.
As Carolyn and Teena call on all their fortitude to tackle the increasingly complex and disturbing Riley case, Mal finds himself allied with the enigmatic Wolfe Fisher. As tensions rise, they are all drawn ever deeper into the mysterious hidden world of the Celtic Gods, and a potentially lethal battle to stop Camulos and his followers.
Author's Note. Originally published in 2016 as 'Ghost Hunter II: Of Gods and Ghosts, ' this revised edition contains new material.