There are 2 books in the The Bird and the Sword Chronicles series. The newest book is The Queen and the Cure which came out in 2017.

1
The Bird and the Sword

Book cover of The Bird and the Sword
Swallow, daughter, pull them in, those words that sit upon your lips. Lock them deep inside your soul, hide them ‘til they’ve time to grow. Close your mouth upon the power, curse not, cure not, ‘til the hour. You won’t speak and you won’t tell, you won’t call on heaven…
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2
The Queen and the Cure

Book cover of The Queen and the Cure
There will be a battle, and you will need to protect your heart. Kjell of Jeru had always known who he was. He'd never envied his brother or wanted to be king. He was the bastard son of the late King Zoltev and a servant girl, and the ignominy of…