Hammer of God - Karen Miller

In Ethrea, Rhian sits upon a precarious throne. Defiant noblemen who won't accept her rule threaten the stability of her kingdom, Zandakar, a man she thought was her friend, has been revealed as the son of a woman sworn to destroy her and her husband, King Alasdair, is increasingly unsure of her love.

Rhian's most grave problem, however, lay outside the borders of her realm. The trading nations refuse to believe Mijak is a threat and promise reprisals if she dares to protect her realm. If she cannot unite the warring factions within her land, a move again Mijak might prove the end of her reign. Which is exactly what the empress of Mijak has planned. . .