The Cruel Prince meets For the Wolf in a sizzling fantasy romance inspired by Celtic fae mythology, spinning a magical tale of a changeling princess, her cursed sister, and the dangerous fae lord she must defeat to save her family.

In a realm without magic, Fia is a rare changeling, swapped for the Princess Eala by the wicked Fair Folk. Eala's mother, the High Queen, has taken Fia in as an adoptive daughter and trained her as a warrior spy. Princess Eala, meanwhile, is the prisoner of a shadowy Folk lord, cursed to be a swan twenty-eight days of the month.

When a forgotten gate to the Folk realm is discovered, Fia is tasked by the High Queen to break Eala's curse and retrieve her, and to capture a powerful magical weapon that will help humankind destroy the evil in Otherworld. Accompanying Fia on this mission is handsome prince Rogan, the betrothed of Princess Eala, and the very man who Fia secretly loves.

As the two journey through the gate, Fia is conflicted by her feelings for the prince. And as each moon cycle waxes and wanes, she soon finds herself fighting a heated attraction to the dark-hearted Gentry lord holding Eala captive as well.

With time running out to break Princess Eala's curse and claim the powerful weapon, Fia begins to question everything-the truth of her origins, the reality of her mission, and the "love" of her mother and High Queen. Ultimately, the key to unraveling truth from half-truth and saving the balance between the realms might just be. . . herself.