Rogue Magess - Wild Sorceress Series, #3

In a world where hostile nations wield magic in combat, twin sorceresses separated at birth and brought up on opposing sides of the war find each other. Together, they face persecution for using wild magic, fight against traitors and assassins, explore family secrets, and discover the hidden origins of magic itself. Above all, to protect their world, they must deal with ancient, powerful dragons that most people don't even believe exist.

Sorceresses Aetria and Coleni discover that both their own births and the history of their world have been manipulated in secret by an ancient, powerful race of dragons. Some, like Aetria's lifelong friend Rajii, have benevolent intentions toward humanity while others want to restore the people of the Domains to total slavery. All, however, have their own agendas with human beings and mortal magic as pawns.

Emerging from their long-lost mother's hidden home in the deserted Non-Lands, Aetria and Coleni find themselves targeted by assassins under control of the dragons. While the sisters' powers continue to grow, so do the magical gifts of Coleni's baby daughter, but will their magic provide adequate protection?

Meanwhile, still viewed with suspicion for their "wild sorcery", they can't convince most of their rivals and allies, including Aetria's old mentor and the commanding general of the army, that the dragons and the danger they pose are real.