The Price of Valor — Django Wexler

After the king's death, war has come to Vordan. The Deputies-General, led by a traitor-seeking zealot, has taken control. Queen Raesinia Orboan is nearly powerless as the government tightens its grip and assassins threaten her life. Unwilling to see the country come under another tyranny, she sets out to turn the tide of history.

As the Sworn Church brings the powers of the continent to war against Vordan, General Janus bet Vhalnich offers a path to victory. Winter Ihernglass, newly promoted to command a regiment, has reunited with her lover and her friends only to face the prospect of leading them into bloody battle.

And the enemy is not just armed with muskets and cannon. Dark priests of an ancient order, wielding forbidden magic, have infiltrated Vordan to stop Janus by whatever means necessary....