Valor (Faithful and the Fallen #2) by John Gwynne

The Banished Lands is torn by war as High King Nathair sweeps the land challenging all who oppose him in his holy crusade. Allied with the manipulative Queen Rhin of Cambren, there are few who can stand against them. But Rhin is playing her own games and has her eyes on a far greater prize... Left for dead, her kin fled and her country overrun with enemies, Cywen has no choice but to try to survive. But any chance of escape is futile once Nathair and his disquieting advisor Calidus realise who she is. They have no intention of letting such a prize from their grasp. For she may be their greatest chance at killing the biggest threat to their power. Meanwhile, the young warrior Corban flees from his conquered homeland with his exiled companions heading for the only place that may offer them sanctuary - Domhain. But to get there they must travel through Cambren avoiding warbands, giants and the vicious wolven of the mountains. And all the while Corban must battle to become the man that everyone believes him to be - the Bright Star and saviour of the Banished Lands. And in the Otherworld dark forces scheme to bring a host of the Fallen into the world of flesh to end the war with the Faithful, once and for all.