Engfa Waraha rules the underworld with an iron fist-ruthless, untouchable, feared by all. In her world, love is a weakness, and weakness gets you killed. She has built her empire on blood, vengeance, and power. Nothing shakes her. Nothing reaches her heart. Because she no longer has one. Then why is she letting me get close? I'm Charlotte Austin-a journalist who should have walked away. I was only supposed to write about her, expose the truth, and move on. But the more I learn, the more I want. I should be afraid. I should stop before it's too late. But how do you stop when the danger itself becomes an addiction? Engfa Waraha doesn't believe in love. I don't believe in limits. She is the Queen of the Underworld. And I am walking straight into her darkness.

A história se passa em um universo com uma pirâmide estatal dividida entre alfas, betas e ômegas. Engfa Waraha é a comandante que uniu treze clãs em uma coalizão poderosa, porém é atormentada por visões de derramamento de sangue e uma mulher misteriosa. Charlotte Austin, guerreira da Nação do Gelo, é vista como promissora nos duelos para se juntar à guarda da comandante. Juntas, precisam enfrentar uma antiga e poderosa ameaça que ressurge, em um jogo sobrenatural maior do que podem compreender.