The mountain of kept memory

Princess Oressa Madalin of the kingdom of Carastind loves sneaking into places she isn't allowed to go. When she overhears her father, the king, talking about a coming war, Oressa determines to save Carastind--but to do so she may have to defy her father. Allying herself with Gulien, her brother, Oressa goes to see the Kieba, a woman who controls the magic of a thousand dead gods on her unfathomable mountain. However, the invaders know about the Kieba, and want her power for themselves.