The Montival/The Sacrifice Emberverse III & IV Series by S.M. Stirling

Rudi Mackenzie has returned to Montival with the Sword of the Lady, ready to face the legions of the Prophet. To achieve victory, Rudi must assemble a coalition of former enemies and forge an army that will rescue his homeland and tear the heart out of the Church Universal and Triumphant once and for all.

Rudi McKenzie-now Artos, the High King of Montival-must fulfill his destiny. He wields the sword crafted for him before he was born. He has made friends of his enemies. He has won the heart of the woman he loves.And now he must defeat the forces of the Church Universal and Triumphant, knowing he may lose his life in the final battle...

“[A] gifted author,”* S.M. Stirling created a fascinating neo-medieval world in his Novels of the Change where the remnants of humanity struggle to survive in a post-technological environment. Now, the New York Times bestselling epic continues as a king faces a challenge beyond the battlefield… Rudi Mackenize, now Artos the First, High King of Montival, and his allies have won several key battles against the Church Universal and Triumphant... more“[A] gifted author,”* S.M. Stirling created a fascinating neo-medieval world in his Novels of the Change where the remnants of humanity struggle to survive in a post-technological environment. Now, the New York Times bestselling epic continues as a king faces a challenge beyond the battlefield… Rudi Mackenize, now Artos the First, High King of Montival, and his allies have won several key battles against the Church Universal and Triumphant. But still the war rages on, taking countless lives, ravaging the land once known as the United States of America. Artos and his Queen, Mathilda, must unite the realms into a single kingdom to ensure a lasting peace. If the leaders of the Changed world are to accept Artos as their ruler, he will need to undertake a quest to the Lake at the Heart of the Mountains, and take part in a crowning ceremony—a ceremony binding him to his people, his ancestors, and his land. Then, once he has secured his place and allegiances, Artos can go forward, and lead his forces to the heart of the enemy’s territory… *San Francisco Book Review less

Praised as a truly original combination of postapocalyptic sci-fi and military-oriented medieval fantasy, S. M. Stirling’s Novels of the Change depict a future without technology, where people must master skills from ages past in order to survive. Now, to ensure that survival for all he cares for, a king faces his greatest challenge in the latest chapter of the New York Times bestselling saga.... Rudi Mackenzie has won the battle that expelled the enemy from the new High Kingdom of Montival... morePraised as a truly original combination of postapocalyptic sci-fi and military-oriented medieval fantasy, S. M. Stirling’s Novels of the Change depict a future without technology, where people must master skills from ages past in order to survive. Now, to ensure that survival for all he cares for, a king faces his greatest challenge in the latest chapter of the New York Times bestselling saga.... Rudi Mackenzie has won the battle that expelled the enemy from the new High Kingdom of Montival. Now he must free the people who live in the state once known as Idaho from occupation by the legions of the Church Universal and Triumphant and pursue them to their lair over the mountains. There he will finally confront the forces behind the Church—the Powers of the Void. Yet even a victory will not end the conflict forever. The Powers of the Void are malevolent and infinitely patient, and the struggle is one that involves the entire world. They threaten Rudi not only in the present, but also in the future represented by his children, Órlaith and John. Rudi knows this. And as his heir Princess Órlaith grows up in the shadow of her famous father, she also realizes that the enemy will do anything to see that she does not live to fulfill her parents’ dream.... *Kirkus Reviews less