Queen

Queen – Book 3 – Brotherhood of the Throne -

The king is dead, long live the queen. It's not a title that Brenna Trewen wants, but only she has the loyalty of Duchess Avery, Duke Ewart and the Brotherhood of the Throne. And only she can stop Duke Thorold and the Church of the One-God from committing the brutalities she's seen in her visions.
Refugees are already fleeing to the safety of lands not controlled by Duke Thorold. And worse, people of Kingsreach – people Brenna spent years living beside and healing – are being rounded up and sent to the mines as slaves.
She has to save them.
Then Kane is captured and tortured – she can feel his pain through their connection to old steel. She has to save him as well. And she must defeat Duke Thorold once and for all.