From publisher blurb:

The Finians are without a doubt the toughest of the Earth Goddess tribes. No other tribe could continually defend Alba as the Finian tribe does. From resisting the incursions of the sea-devils of Lochlann, to skirmishing the territorial Fir Domain and the persistent rivalry of the Sessair, the Finians are under constant siege - and always endure. Theirs is the most stable of the tribes, stoic and proud, who take bitter war to their enemies as often as they themselves are attacked. With the formidable war academies of Scathach, Aife and Cerena Fair-Mane in their lands and the weird gift of Second Sight recurring in their bloodline, the Finians have both the might and vision to survive the darkest of times.