The year is 1882 Scotland, and the auld alliance betwixt king and fey has long been forgotten. Men of science, backed by barons of industry, push the boundaries of technology. When Sir Walter Conrad discovers a new energy source, one that could topple nations and revolutionize society, the race to dominate its ownership begins. But the excavation and use of this energy source will have dire consequences for both humans and fey. For an ancient enemy stirs, awakened by Sir Walter's discovery.

Outcast half-fey Effie of Glen Coe is the Empire's only hope at averting the oncoming...