In Shadows (In Shadows #2)

There's no turning back for Princess Islen and Artzur, her knight in shining armor (or so he wishes). After laying waste to her father's kingdom, the cast-out princess flees to the mysterious North, where Azhur was born and later banished. Even as their foes near, and multiply, an even more formidable enemy threatens from within... Islen's powerful and long-lost mother, Meliren.