The Invasion of Salvonia. Planet Ereshmar, #2

Gertrude, the favored grandniece of King Betvan of Salvonia, has lived her life wrapped in silk and expectation. With no daughters of his own, the king treats her as a princess in all but name-and someday, the throne may be hers. But Gertrude does not dream of courts or coronations. She dreams of steel, blood, and the weight of a morning star swinging true in her hands. When the Kingdom of Laurone collapses and the once-mighty Holsonae family is wiped from history, the conqueror Yaqvon turns his gaze toward Salvonia.
His armies advance by land and sea, leaving burning forests and shattered fleets in their wake. As invasion looms, Gertrude is forced to become more than a symbol of succession. She must become a warrior worthy of the chaos to come. Battles rage across dark waters and tangled woods, with ship-to-ship combat and desperate last stands testing loyalty, courage, and survival. At the heart of it all stands King Betvan-and the strange, ancient weapon he possesses, a device of unknown power that whispers of salvation.
or annihilation. As shadows gather and kingdoms fall, Gertrude must decide who she truly is: a future queen shaped by tradition, or a weapon forged by war.