Night Meets the Elf Queen by J.M. Kearl

Valeen, the goddess of night, fears no one and is never commanded by anyone.
Layala Lightbringer has embraced her goddess side, Valeen, but she has the fight of her life against the Council of the Gods before she can reclaim her throne and immortality.
No longer is she the confused, lost elf afraid of her power. She is a primordial goddess and wife to the god of mischief and magic, Hel. She, Hel, and Thane have a vendetta to settle, and she will rain down the very stars on her enemies to protect those she loves.
But the enemy is ruthless, powerful, and cunning. Everyone she loves is threatened, including her beloved sister Katana, and the existence of Palenor.
The council wants what she has and they’ve hunted her through the ages to get it. But she won’t give up, and she won’t give in. The drums of war steadily beat, but the queen is back and ready to take what’s rightfully hers.