Crown of the Exiled - C. A. Varian - Bog

Septima is gone.
Those were the last words Aurelia Vesta heard after being wounded in battle. Her sister had been captured by the enemy, and no matter how hard she searched, there was no sign of her. After fleeing their home together, and crossing the portal into a magical fae world, the sisters were separated. The vow they'd made to always stay together was broken.
With the phoenix warriors of Aegrica, and the rebuilding kingdom of Norithae by her side, Aurelia will do whatever it takes to save Septima and defeat the barbaric Warbotach ruler who reigns terror throughout the land of Ekotoria.
But the corrupt king is the least of her worries. His people conquer without remorse, but they are nothing more than puppets, and the Warbotach leader? He's just a weapon wielded by a force everyone believed was gone for good.
When the battle rages, and heroes fall, can the tide of the war be turned, or will the continent of Ekotoria-and Septima-be lost for good? No matter what happens, one thing is certain.
The fae realm will never be the same.
The Crown of the Phoenix series is a trilogy so Crown of the Exiled, which is book 2, will end on a cliffhanger.
Trigger Warnings:
Crown of the Exiled contains graphic (consensual) sex, mature language, captivity, violence and some torture.