On the west coast of pre-Celtic Britain the Old Gods of earth and sea are stirring. Once again there are portents of imminent disaster. The only hope for survival lies in knowledge preserved by survivors of an earlier cataclysm whose descendants now live far to the east. Nhiall, a young priest-in-training, is sent on a dangerous journey across prehistoric Europe and the middle east in search of the wisdom that may bind the power of the Old Gods.