Crown of Crystal Flame by C.L. Wilson — book slip

Ellysetta Baristani has long been destined for greatness, and her journey with the Fey King, Rain Tairen Soul, reaches its climax in "Crown of Crystal Flame." As the final battle against the dark forces of Eld looms, Ellysetta must harness the full power of her Song to save the world from eternal darkness. Her bond with Rain, both magical and romantic, is tested as they face the High Mage of Eld and the ancient evil threatening their world. Together, they must navigate political intrigue and fulfill the prophecy that could either save or doom their world.

For fans of Terry Goodkind's dark, epic fantasy.