The Mortal Queen by Ashley Metzler

Married to a dark fae king, her world is now one of danger and desire…

The fae have been at war with mortals for as long as Aisling can remember. Now, to save her people, she must sacrifice herself – by marrying the savage fae king.
As her wedding draws closer, Aisling prepares for a fate worse than death. But when she meets her new husband, he is not at all the beast she expected.
Lir is alluring, wild, and dangerously perfect. She is determined to hate him, but his sharp tongue and fierce loyalty spark an attraction she cannot control. He draws Aisling into a realm of deadly enchantments and mythical beasts.
But she soon discovers that the fae have monsters of their own…
When Aisling finds herself fighting at Lir’s side, something new stirs inside her. Something more than desire; something magical and untamed, ready to break free.